diff --git a/Source/CursesDialog/cmCursesLongMessageForm.cxx b/Source/CursesDialog/cmCursesLongMessageForm.cxx
index 1c48d8c7c2..0e2cd229fc 100644
--- a/Source/CursesDialog/cmCursesLongMessageForm.cxx
+++ b/Source/CursesDialog/cmCursesLongMessageForm.cxx
@@ -68,7 +68,7 @@ void cmCursesLongMessageForm::UpdateStatusBar()
     }
   else
     {
-    width = cmCursesMainForm::MAX_WIDTH;
+    width = cmCursesMainForm::MAX_WIDTH-1;
     }
 
   bar[width] = '\0';