diff --git a/goldlib/gall/gstrutil.cpp b/goldlib/gall/gstrutil.cpp
index c9bb1c0..b8ff8f3 100644
--- a/goldlib/gall/gstrutil.cpp
+++ b/goldlib/gall/gstrutil.cpp
@@ -100,7 +100,7 @@ static char* strdel(const char* substr, char* str) {
   if(!dest)
     return NULL;
   char* src = dest + strlen(substr);
-  strcpy(dest, src);
+  strcpy(dest, src);  /* Source and destination overlap. This is rigth. */
 
   return str;
 }