diff --git a/src/catch2/catch_config.cpp b/src/catch2/catch_config.cpp
index 7a4a0bda..0a3f83a2 100644
--- a/src/catch2/catch_config.cpp
+++ b/src/catch2/catch_config.cpp
@@ -18,7 +18,7 @@ namespace Catch {
 
     Config::Config( ConfigData const& data )
     :   m_data( data ),
-        m_stream( openStream() )
+        m_stream( Catch::makeStream(m_data.outputFilename) )
     {
         // We need to trim filter specs to avoid trouble with superfluous
         // whitespace (esp. important for bdd macros, as those are manually
@@ -86,8 +86,4 @@ namespace Catch {
     unsigned int Config::benchmarkResamples() const               { return m_data.benchmarkResamples; }
     std::chrono::milliseconds Config::benchmarkWarmupTime() const { return std::chrono::milliseconds(m_data.benchmarkWarmupTime); }
 
-    IStream const* Config::openStream() {
-        return Catch::makeStream(m_data.outputFilename);
-    }
-
 } // end namespace Catch
diff --git a/src/catch2/catch_config.hpp b/src/catch2/catch_config.hpp
index 10d0487a..2f44518c 100644
--- a/src/catch2/catch_config.hpp
+++ b/src/catch2/catch_config.hpp
@@ -110,8 +110,6 @@ namespace Catch {
         std::chrono::milliseconds benchmarkWarmupTime() const override;
 
     private:
-
-        IStream const* openStream();
         ConfigData m_data;
 
         Detail::unique_ptr<IStream const> m_stream;
diff --git a/src/catch2/internal/catch_stream.cpp b/src/catch2/internal/catch_stream.cpp
index 38919f8f..c1e0d1dc 100644
--- a/src/catch2/internal/catch_stream.cpp
+++ b/src/catch2/internal/catch_stream.cpp
@@ -123,17 +123,17 @@ namespace Detail {
 
     ///////////////////////////////////////////////////////////////////////////
 
-    auto makeStream( std::string const& filename ) -> IStream const* {
+    auto makeStream( std::string const& filename ) -> Detail::unique_ptr<IStream const> {
         if( filename.empty() )
-            return new Detail::CoutStream();
+            return Detail::make_unique<Detail::CoutStream>();
         else if( filename[0] == '%' ) {
             if( filename == "%debug" )
-                return new Detail::DebugOutStream();
+                return Detail::make_unique<Detail::DebugOutStream>();
             else
                 CATCH_ERROR( "Unrecognised stream: '" << filename << "'" );
         }
         else
-            return new Detail::FileStream( filename );
+            return Detail::make_unique<Detail::FileStream>( filename );
     }
 
 
diff --git a/src/catch2/internal/catch_stream.hpp b/src/catch2/internal/catch_stream.hpp
index b764f825..39a4c0c8 100644
--- a/src/catch2/internal/catch_stream.hpp
+++ b/src/catch2/internal/catch_stream.hpp
@@ -9,6 +9,7 @@
 #define CATCH_STREAM_HPP_INCLUDED
 
 #include <catch2/internal/catch_noncopyable.hpp>
+#include <catch2/internal/catch_unique_ptr.hpp>
 
 #include <iosfwd>
 #include <cstddef>
@@ -26,7 +27,7 @@ namespace Catch {
         virtual std::ostream& stream() const = 0;
     };
 
-    auto makeStream( std::string const& filename ) -> IStream const*;
+    auto makeStream( std::string const& filename ) -> Detail::unique_ptr<IStream const>;
 
     class ReusableStringStream : Detail::NonCopyable {
         std::size_t m_index;