diff --git a/src/catch2/internal/catch_test_spec_parser.cpp b/src/catch2/internal/catch_test_spec_parser.cpp
index 1d9eaa72..bae25475 100644
--- a/src/catch2/internal/catch_test_spec_parser.cpp
+++ b/src/catch2/internal/catch_test_spec_parser.cpp
@@ -238,8 +238,4 @@ namespace Catch {
         m_mode = None;
     }
 
-    TestSpec parseTestSpec( std::string const& arg ) {
-        return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
-    }
-
 } // namespace Catch
diff --git a/src/catch2/internal/catch_test_spec_parser.hpp b/src/catch2/internal/catch_test_spec_parser.hpp
index ae73f4f5..aa2917db 100644
--- a/src/catch2/internal/catch_test_spec_parser.hpp
+++ b/src/catch2/internal/catch_test_spec_parser.hpp
@@ -71,7 +71,6 @@ namespace Catch {
         }
 
     };
-    TestSpec parseTestSpec( std::string const& arg );
 
 } // namespace Catch
 
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 698e40dd..46d62428 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -101,6 +101,7 @@ set(TEST_SOURCES
         ${SELF_TEST_DIR}/IntrospectiveTests/Xml.tests.cpp
         ${SELF_TEST_DIR}/IntrospectiveTests/ToString.tests.cpp
         ${SELF_TEST_DIR}/IntrospectiveTests/UniquePtr.tests.cpp
+        ${SELF_TEST_DIR}/helpers/parse_test_spec.cpp
         ${SELF_TEST_DIR}/TimingTests/Sleep.tests.cpp
         ${SELF_TEST_DIR}/UsageTests/Approx.tests.cpp
         ${SELF_TEST_DIR}/UsageTests/BDD.tests.cpp
@@ -129,6 +130,10 @@ set(TEST_SOURCES
         ${SELF_TEST_DIR}/UsageTests/Matchers.tests.cpp
         )
 
+set(TEST_HEADERS
+  ${SELF_TEST_DIR}/helpers/parse_test_spec.hpp
+)
+
 
 # Specify the headers, too, so CLion recognises them as project files
 set(HEADERS
@@ -146,7 +151,8 @@ set(HEADERS
 
 include(CTest)
 
-add_executable(SelfTest ${TEST_SOURCES})
+add_executable(SelfTest ${TEST_SOURCES} ${TEST_HEADERS})
+target_include_directories(SelfTest PRIVATE ${SELF_TEST_DIR})
 target_link_libraries(SelfTest PRIVATE Catch2WithMain)
 if (BUILD_SHARED_LIBS AND WIN32)
     add_custom_command(TARGET SelfTest PRE_LINK
diff --git a/tests/SelfTest/IntrospectiveTests/TestSpec.tests.cpp b/tests/SelfTest/IntrospectiveTests/TestSpec.tests.cpp
index 57bb20ba..9c4eb03b 100644
--- a/tests/SelfTest/IntrospectiveTests/TestSpec.tests.cpp
+++ b/tests/SelfTest/IntrospectiveTests/TestSpec.tests.cpp
@@ -17,6 +17,7 @@
 #include <catch2/generators/catch_generators.hpp>
 #include <catch2/internal/catch_compiler_capabilities.hpp>
 
+#include <helpers/parse_test_spec.hpp>
 
 namespace {
     auto fakeTestCase(const char* name, const char* desc = "") { return Catch::makeTestCaseInfo("", { name, desc }, CATCH_INTERNAL_LINEINFO); }
diff --git a/tests/SelfTest/helpers/parse_test_spec.cpp b/tests/SelfTest/helpers/parse_test_spec.cpp
new file mode 100644
index 00000000..2431d524
--- /dev/null
+++ b/tests/SelfTest/helpers/parse_test_spec.cpp
@@ -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
+
+#include <helpers/parse_test_spec.hpp>
+
+#include <catch2/internal/catch_test_spec_parser.hpp>
+#include <catch2/interfaces/catch_interfaces_tag_alias_registry.hpp>
+
+namespace Catch {
+
+    TestSpec parseTestSpec( std::string const& arg ) {
+        return TestSpecParser( ITagAliasRegistry::get() )
+            .parse( arg )
+            .testSpec();
+    }
+
+} // namespace Catch
diff --git a/tests/SelfTest/helpers/parse_test_spec.hpp b/tests/SelfTest/helpers/parse_test_spec.hpp
new file mode 100644
index 00000000..4cf2a241
--- /dev/null
+++ b/tests/SelfTest/helpers/parse_test_spec.hpp
@@ -0,0 +1,15 @@
+
+//              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/catch_test_spec.hpp>
+
+#include <string>
+
+namespace Catch {
+    TestSpec parseTestSpec( std::string const& arg );
+}