diff --git a/include/internal/catch_assertionresult.h b/include/internal/catch_assertionresult.h
index 5d6c86d1..87e85990 100644
--- a/include/internal/catch_assertionresult.h
+++ b/include/internal/catch_assertionresult.h
@@ -43,14 +43,12 @@ namespace Catch {
         AssertionInfo(  char const * _macroName,
                         SourceLineInfo const& _lineInfo,
                         char const * _capturedExpression,
-                        ResultDisposition::Flags _resultDisposition,
-                        char const * _secondArg = "");
+                        ResultDisposition::Flags _resultDisposition);
 
         char const * macroName;
         SourceLineInfo lineInfo;
         char const * capturedExpression;
         ResultDisposition::Flags resultDisposition;
-        char const * secondArg;
     };
 
     struct AssertionResultData
diff --git a/include/internal/catch_assertionresult.hpp b/include/internal/catch_assertionresult.hpp
index 2fa3373d..b4038ade 100644
--- a/include/internal/catch_assertionresult.hpp
+++ b/include/internal/catch_assertionresult.hpp
@@ -16,13 +16,11 @@ namespace Catch {
     AssertionInfo::AssertionInfo(   char const * _macroName,
                                     SourceLineInfo const& _lineInfo,
                                     char const * _capturedExpression,
-                                    ResultDisposition::Flags _resultDisposition,
-                                    char const * _secondArg)
+                                    ResultDisposition::Flags _resultDisposition)
     :   macroName( _macroName ),
         lineInfo( _lineInfo ),
         capturedExpression( _capturedExpression ),
-        resultDisposition( _resultDisposition ),
-        secondArg( _secondArg )
+        resultDisposition( _resultDisposition )
     {}
 
     AssertionResult::AssertionResult() {}
@@ -63,16 +61,17 @@ namespace Catch {
     }
 
     std::string AssertionResult::getExpression() const {
-        if( isFalseTest( m_info.resultDisposition ) )
-            return '!' + capturedExpressionWithSecondArgument(m_info.capturedExpression, m_info.secondArg);
+        if (isFalseTest(m_info.resultDisposition))
+            return '!' + std::string(m_info.capturedExpression);
         else
-            return capturedExpressionWithSecondArgument(m_info.capturedExpression, m_info.secondArg);
+            return std::string(m_info.capturedExpression);
     }
+
     std::string AssertionResult::getExpressionInMacro() const {
         if( m_info.macroName[0] == 0 )
-            return capturedExpressionWithSecondArgument(m_info.capturedExpression, m_info.secondArg);
+            return std::string(m_info.capturedExpression);
         else
-            return std::string(m_info.macroName) + "( " + capturedExpressionWithSecondArgument(m_info.capturedExpression, m_info.secondArg) + " )";
+            return std::string(m_info.macroName) + "( " + m_info.capturedExpression + " )";
     }
 
     bool AssertionResult::hasExpandedExpression() const {
diff --git a/include/internal/catch_capture.hpp b/include/internal/catch_capture.hpp
index a6d25dad..968bf79e 100644
--- a/include/internal/catch_capture.hpp
+++ b/include/internal/catch_capture.hpp
@@ -107,7 +107,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 #define INTERNAL_CATCH_THROWS( macroName, resultDisposition, matcher, expr ) \
     do { \
-        Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr, resultDisposition, #matcher ); \
+        Catch::ResultBuilder __catchResult( macroName, CATCH_INTERNAL_LINEINFO, #expr ", " #matcher, resultDisposition); \
         if( __catchResult.allowThrows() ) \
             try { \
                 static_cast<void>(expr); \
diff --git a/include/internal/catch_result_builder.h b/include/internal/catch_result_builder.h
index 82494566..1e8bff52 100644
--- a/include/internal/catch_result_builder.h
+++ b/include/internal/catch_result_builder.h
@@ -37,8 +37,7 @@ namespace Catch {
         ResultBuilder(  char const* macroName,
                         SourceLineInfo const& lineInfo,
                         char const* capturedExpression,
-                        ResultDisposition::Flags resultDisposition,
-                        char const* secondArg = "" );
+                        ResultDisposition::Flags resultDisposition);
         ~ResultBuilder();
 
         template<typename T>
diff --git a/include/internal/catch_result_builder.hpp b/include/internal/catch_result_builder.hpp
index 510fbc3b..f3688de5 100644
--- a/include/internal/catch_result_builder.hpp
+++ b/include/internal/catch_result_builder.hpp
@@ -21,9 +21,8 @@ namespace Catch {
     ResultBuilder::ResultBuilder(   char const* macroName,
                                     SourceLineInfo const& lineInfo,
                                     char const* capturedExpression,
-                                    ResultDisposition::Flags resultDisposition,
-                                    char const* secondArg )
-    :   m_assertionInfo( macroName, lineInfo, capturedExpression, resultDisposition, secondArg ),
+                                    ResultDisposition::Flags resultDisposition)
+    :   m_assertionInfo( macroName, lineInfo, capturedExpression, resultDisposition),
         m_shouldDebugBreak( false ),
         m_shouldThrow( false ),
         m_guardException( false )
@@ -77,7 +76,7 @@ namespace Catch {
         assert( !isFalseTest( m_assertionInfo.resultDisposition ) );
         AssertionResultData data = m_data;
         data.resultType = ResultWas::Ok;
-        data.reconstructedExpression = capturedExpressionWithSecondArgument(m_assertionInfo.capturedExpression, m_assertionInfo.secondArg);
+        data.reconstructedExpression = m_assertionInfo.capturedExpression;
 
         std::string actualMessage = Catch::translateActiveException();
         if( !matcher.match( actualMessage ) ) {
@@ -149,7 +148,7 @@ namespace Catch {
     }
 
     void ResultBuilder::reconstructExpression( std::string& dest ) const {
-        dest = capturedExpressionWithSecondArgument(m_assertionInfo.capturedExpression, m_assertionInfo.secondArg);
+        dest = m_assertionInfo.capturedExpression;
     }
 
     void ResultBuilder::setExceptionGuard() {