diff --git a/ide/keymapping.pp b/ide/keymapping.pp
index 4a9233f264..d797f3a25e 100644
--- a/ide/keymapping.pp
+++ b/ide/keymapping.pp
@@ -3473,8 +3473,10 @@ var
     // Ignore the second Ctrl key in sequential combos unless both variations are defined.
     // For example "Ctrl-X, Y" and "Ctrl-X, Ctrl-Y" are then treated the same.
     if (aKey.Key2<>VK_UNKNOWN) and (aKey.Shift=[ssCtrl]) and (aKey.Shift2-[ssCtrl]=[])
-    and not ShiftConflict(aKey) then
-      aKey.ShiftMask2:=[ssCtrl]
+    and not ShiftConflict(aKey) then begin
+      aKey.ShiftMask2:=[ssCtrl];
+      aKey.Shift2:=[];
+    end
     else
       aKey.ShiftMask2:=[];
   end;