diff --git a/Testing/printDebugging.h b/Testing/printDebugging.h
index 1dd12e2..4b2dc44 100644
--- a/Testing/printDebugging.h
+++ b/Testing/printDebugging.h
@@ -39,6 +39,9 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 
 		template< OutputMode outputMode, typename T >
 		void printDebugging( const T &witness, const T &expected );
+
+		template< OutputMode outputMode, typename T >
+		auto streamAdaptValue( const T &v );
 	}
 
 	using namespace std::literals::string_literals;
@@ -143,7 +146,7 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 
 	template< OutputMode outputMode, typename T >
 	auto
-	streamAdaptValue( const T &v )
+	exports::streamAdaptValue( const T &v )
 	{
 		return Adaptor< outputMode, std::decay_t< T > >{ v };
 	}