diff --git a/conversion/stringconversion.cpp b/conversion/stringconversion.cpp
index 0511093..b91193d 100644
--- a/conversion/stringconversion.cpp
+++ b/conversion/stringconversion.cpp
@@ -85,7 +85,7 @@ public:
                 break;
             }
         }
-        return StringData(outputBuffer, currentOutputOffset - outputBuffer);
+        return StringData(std::unique_ptr<char[], StringDataDeleter>(outputBuffer), currentOutputOffset - outputBuffer);
     }
 
 private: