diff --git a/code/ryzom/tools/client/ryzom_installer/src/filesextractor.cpp b/code/ryzom/tools/client/ryzom_installer/src/filesextractor.cpp
index b66bf57a7..241817e9c 100644
--- a/code/ryzom/tools/client/ryzom_installer/src/filesextractor.cpp
+++ b/code/ryzom/tools/client/ryzom_installer/src/filesextractor.cpp
@@ -289,7 +289,7 @@ bool CFilesExtractor::exec()
 		return extractBnp();
 	}
 
-	nlwarning("Unsupported format");
+	nlwarning("Unsupported format for file %s", Q2C(m_sourceFile));
 	return false;
 }