diff --git a/reactos/subsys/win32k/ntuser/keyboard.c b/reactos/subsys/win32k/ntuser/keyboard.c
index 6f5a6550e19..6c9fe5e3193 100644
--- a/reactos/subsys/win32k/ntuser/keyboard.c
+++ b/reactos/subsys/win32k/ntuser/keyboard.c
@@ -1153,7 +1153,7 @@ NtUserVkKeyScanEx(
         0x01 Shift key
         0x02 Ctrl key
         0x04 Alt key
-        Should have only 7 valid possibilities.
+        Should have only 8 valid possibilities. Including zero.
       */
       for(CapsState = 0; CapsState < vtwTbl->nModifications; CapsState++)
       {