diff --git a/src/App/Metadata.cpp b/src/App/Metadata.cpp
index e6656b63b2..96aa4b8236 100644
--- a/src/App/Metadata.cpp
+++ b/src/App/Metadata.cpp
@@ -58,7 +58,7 @@ XERCES_CPP_NAMESPACE_USE
 
 namespace MetadataInternal {
     class XMLErrorHandler : public HandlerBase {
-        void warning(const SAXParseException&)
+        void warning(const SAXParseException& toCatch)
         {
             // Don't deal with warnings at all
             std::ignore = toCatch;