diff --git a/Common/DefaultOptions.h b/Common/DefaultOptions.h
index 87c53f0d5e099022e499449717014df9f8ada88c..3465f69042d85b8875aea6ea5d65a840f5f04b98 100644
--- a/Common/DefaultOptions.h
+++ b/Common/DefaultOptions.h
@@ -675,7 +675,7 @@ StringXNumber GeneralOptions_Number[] = {
     "Enable mouse selection" },
 
   { F|S, "NonModalWindows" , opt_general_non_modal_windows , 1. ,
-    "Force all control windows to be on top (\"non-modal\")" },
+    "Force all control windows to be on top of the graphic window (\"non-modal\")" },
   { F|O, "NoPopup" , opt_general_nopopup , 0. , 
     "Disable interactive dialog windows in scripts (and use default values instead)" },