diff --git a/include/internal/catch_assertionresult.cpp b/include/internal/catch_assertionresult.cpp
index e58a441f..44151043 100644
--- a/include/internal/catch_assertionresult.cpp
+++ b/include/internal/catch_assertionresult.cpp
@@ -91,7 +91,7 @@ namespace Catch {
         return m_info.lineInfo;
     }
 
-    std::string AssertionResult::getTestMacroName() const {
+    StringRef AssertionResult::getTestMacroName() const {
         return m_info.macroName;
     }
 
diff --git a/include/internal/catch_assertionresult.h b/include/internal/catch_assertionresult.h
index fa8e09f2..3c91ea58 100644
--- a/include/internal/catch_assertionresult.h
+++ b/include/internal/catch_assertionresult.h
@@ -47,7 +47,7 @@ namespace Catch {
         std::string getExpandedExpression() const;
         std::string getMessage() const;
         SourceLineInfo getSourceInfo() const;
-        std::string getTestMacroName() const;
+        StringRef getTestMacroName() const;
 
     //protected:
         AssertionInfo m_info;