diff --git a/source/mem/memory.cpp b/source/mem/memory.cpp
index 01a14e418..2766fe2b3 100644
--- a/source/mem/memory.cpp
+++ b/source/mem/memory.cpp
@@ -368,7 +368,7 @@ void freeDebugMem( void * addr )
 			return;
 		}
 	}
-	ASSERT( !"Can't find debug mem node" );
+	ASSERT( !"Can't find debug mem node ( memory already freed? )" );
 }