diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 5c724a46..fdf30a87 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -125,6 +125,7 @@ set(INTERNAL_HEADERS
     ${SOURCES_DIR}/internal/catch_result_type.hpp
     ${SOURCES_DIR}/internal/catch_run_context.hpp
     ${SOURCES_DIR}/internal/catch_section.hpp
+    ${SOURCES_DIR}/internal/catch_stdstreams.hpp
     ${SOURCES_DIR}/catch_section_info.hpp
     ${SOURCES_DIR}/catch_session.hpp
     ${SOURCES_DIR}/internal/catch_singletons.hpp
@@ -198,6 +199,7 @@ set(IMPL_SOURCES
     ${SOURCES_DIR}/internal/catch_result_type.cpp
     ${SOURCES_DIR}/internal/catch_run_context.cpp
     ${SOURCES_DIR}/internal/catch_section.cpp
+    ${SOURCES_DIR}/internal/catch_stdstreams.cpp
     ${SOURCES_DIR}/catch_session.cpp
     ${SOURCES_DIR}/internal/catch_singletons.cpp
     ${SOURCES_DIR}/internal/catch_stream.cpp
diff --git a/src/catch2/catch_all.hpp b/src/catch2/catch_all.hpp
index 5367ef3e..ce3f49d3 100644
--- a/src/catch2/catch_all.hpp
+++ b/src/catch2/catch_all.hpp
@@ -91,6 +91,7 @@
 #include <catch2/internal/catch_singletons.hpp>
 #include <catch2/internal/catch_source_line_info.hpp>
 #include <catch2/internal/catch_startup_exception_registry.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 #include <catch2/internal/catch_stream.hpp>
 #include <catch2/internal/catch_stream_end_stop.hpp>
 #include <catch2/internal/catch_string_manip.hpp>
diff --git a/src/catch2/catch_session.cpp b/src/catch2/catch_session.cpp
index e6ad93a1..c2047aa2 100644
--- a/src/catch2/catch_session.cpp
+++ b/src/catch2/catch_session.cpp
@@ -11,7 +11,6 @@
 #include <catch2/internal/catch_list.hpp>
 #include <catch2/internal/catch_context.hpp>
 #include <catch2/internal/catch_run_context.hpp>
-#include <catch2/internal/catch_stream.hpp>
 #include <catch2/catch_test_spec.hpp>
 #include <catch2/catch_version.hpp>
 #include <catch2/interfaces/catch_interfaces_reporter.hpp>
@@ -23,6 +22,7 @@
 #include <catch2/interfaces/catch_interfaces_reporter_registry.hpp>
 #include <catch2/interfaces/catch_interfaces_reporter_factory.hpp>
 #include <catch2/internal/catch_move_and_forward.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 
 #include <algorithm>
 #include <cassert>
diff --git a/src/catch2/internal/catch_debug_console.cpp b/src/catch2/internal/catch_debug_console.cpp
index d13cc0bb..ce351de0 100644
--- a/src/catch2/internal/catch_debug_console.cpp
+++ b/src/catch2/internal/catch_debug_console.cpp
@@ -5,13 +5,15 @@
 //        https://www.boost.org/LICENSE_1_0.txt)
 
 // SPDX-License-Identifier: BSL-1.0
+
 #include <catch2/internal/catch_debug_console.hpp>
+
 #include <catch2/internal/catch_config_android_logwrite.hpp>
 #include <catch2/internal/catch_stream.hpp>
 #include <catch2/internal/catch_platform.hpp>
 #include <catch2/internal/catch_windows_h_proxy.hpp>
-
-#include <iosfwd>
+#include <catch2/catch_user_config.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 
 #if defined(CATCH_CONFIG_ANDROID_LOGWRITE)
 #include <android/log.h>
diff --git a/src/catch2/internal/catch_debugger.cpp b/src/catch2/internal/catch_debugger.cpp
index 3c80173a..57ade819 100644
--- a/src/catch2/internal/catch_debugger.cpp
+++ b/src/catch2/internal/catch_debugger.cpp
@@ -9,6 +9,7 @@
 #include <catch2/internal/catch_errno_guard.hpp>
 #include <catch2/internal/catch_stream.hpp>
 #include <catch2/internal/catch_platform.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 
 #if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)
 
diff --git a/src/catch2/internal/catch_enforce.cpp b/src/catch2/internal/catch_enforce.cpp
index 3f4962cb..4bc47ce3 100644
--- a/src/catch2/internal/catch_enforce.cpp
+++ b/src/catch2/internal/catch_enforce.cpp
@@ -6,6 +6,7 @@
 
 // SPDX-License-Identifier: BSL-1.0
 #include <catch2/internal/catch_enforce.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 
 #include <stdexcept>
 
diff --git a/src/catch2/internal/catch_fatal_condition_handler.cpp b/src/catch2/internal/catch_fatal_condition_handler.cpp
index 410b9b8f..3afd46f5 100644
--- a/src/catch2/internal/catch_fatal_condition_handler.cpp
+++ b/src/catch2/internal/catch_fatal_condition_handler.cpp
@@ -30,6 +30,7 @@
 #include <catch2/internal/catch_enforce.hpp>
 #include <catch2/interfaces/catch_interfaces_capture.hpp>
 #include <catch2/internal/catch_windows_h_proxy.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 
 #include <algorithm>
 
diff --git a/src/catch2/internal/catch_output_redirect.cpp b/src/catch2/internal/catch_output_redirect.cpp
index 49cfaa0d..ae060141 100644
--- a/src/catch2/internal/catch_output_redirect.cpp
+++ b/src/catch2/internal/catch_output_redirect.cpp
@@ -7,6 +7,7 @@
 // SPDX-License-Identifier: BSL-1.0
 #include <catch2/internal/catch_output_redirect.hpp>
 #include <catch2/internal/catch_enforce.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 
 #include <cstdio>
 #include <cstring>
diff --git a/src/catch2/internal/catch_stdstreams.cpp b/src/catch2/internal/catch_stdstreams.cpp
new file mode 100644
index 00000000..21a0e4e6
--- /dev/null
+++ b/src/catch2/internal/catch_stdstreams.cpp
@@ -0,0 +1,24 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE_1_0.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+
+#include <catch2/internal/catch_stdstreams.hpp>
+
+#include <catch2/catch_user_config.hpp>
+
+#include <iostream>
+
+namespace Catch {
+
+// If you #define this you must implement these functions
+#if !defined( CATCH_CONFIG_NOSTDOUT )
+    std::ostream& cout() { return std::cout; }
+    std::ostream& cerr() { return std::cerr; }
+    std::ostream& clog() { return std::clog; }
+#endif
+
+} // namespace Catch
diff --git a/src/catch2/internal/catch_stdstreams.hpp b/src/catch2/internal/catch_stdstreams.hpp
new file mode 100644
index 00000000..39d8bd75
--- /dev/null
+++ b/src/catch2/internal/catch_stdstreams.hpp
@@ -0,0 +1,22 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE_1_0.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+
+#ifndef CATCH_STDSTREAMS_HPP_INCLUDED
+#define CATCH_STDSTREAMS_HPP_INCLUDED
+
+#include <iosfwd>
+
+namespace Catch {
+
+    std::ostream& cout();
+    std::ostream& cerr();
+    std::ostream& clog();
+
+} // namespace Catch
+
+#endif
diff --git a/src/catch2/internal/catch_stream.cpp b/src/catch2/internal/catch_stream.cpp
index 089a7583..64cfde0a 100644
--- a/src/catch2/internal/catch_stream.cpp
+++ b/src/catch2/internal/catch_stream.cpp
@@ -11,9 +11,9 @@
 #include <catch2/internal/catch_stringref.hpp>
 #include <catch2/internal/catch_singletons.hpp>
 #include <catch2/internal/catch_unique_ptr.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
 
 #include <cstdio>
-#include <iostream>
 #include <fstream>
 #include <sstream>
 #include <vector>
@@ -201,12 +201,4 @@ namespace Detail {
     }
 
 
-    ///////////////////////////////////////////////////////////////////////////
-
-
-#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
-    std::ostream& cout() { return std::cout; }
-    std::ostream& cerr() { return std::cerr; }
-    std::ostream& clog() { return std::clog; }
-#endif
 }
diff --git a/src/catch2/internal/catch_stream.hpp b/src/catch2/internal/catch_stream.hpp
index eab7161c..d02dc4b1 100644
--- a/src/catch2/internal/catch_stream.hpp
+++ b/src/catch2/internal/catch_stream.hpp
@@ -18,10 +18,6 @@
 
 namespace Catch {
 
-    std::ostream& cout();
-    std::ostream& cerr();
-    std::ostream& clog();
-
     class IStream {
     public:
         virtual ~IStream(); // = default
diff --git a/src/catch2/reporters/catch_reporter_multi.cpp b/src/catch2/reporters/catch_reporter_multi.cpp
index e8cf7bdf..e7ba7e5d 100644
--- a/src/catch2/reporters/catch_reporter_multi.cpp
+++ b/src/catch2/reporters/catch_reporter_multi.cpp
@@ -9,7 +9,9 @@
 
 #include <catch2/catch_config.hpp>
 #include <catch2/internal/catch_move_and_forward.hpp>
-#include <catch2/internal/catch_stream.hpp>
+#include <catch2/internal/catch_stdstreams.hpp>
+
+#include <ostream>
 
 namespace Catch {
     void MultiReporter::updatePreferences(IEventListener const& reporterish) {
diff --git a/tests/ExtraTests/X04-DisabledExceptions-CustomHandler.cpp b/tests/ExtraTests/X04-DisabledExceptions-CustomHandler.cpp
index b506d8b8..725440ec 100644
--- a/tests/ExtraTests/X04-DisabledExceptions-CustomHandler.cpp
+++ b/tests/ExtraTests/X04-DisabledExceptions-CustomHandler.cpp
@@ -8,11 +8,13 @@
 
 #include <catch2/catch_test_macros.hpp>
 
+#include <iostream>
+
 namespace Catch {
     [[noreturn]]
     void throw_exception(std::exception const& e) {
-        Catch::cerr() << "====== CUSTOM HANDLER ====== run terminates because an exception was thrown.\n"
-                      << "The message was: " << e.what() << '\n';
+        std::cerr << "====== CUSTOM HANDLER ====== run terminates because an exception was thrown.\n"
+                  << "The message was: " << e.what() << '\n';
         // Avoid abort and other exceptional exits -- there is no way
         // to tell CMake that abort is the desired outcome of a test.
         exit(1);