diff --git a/reactos/ntoskrnl/ke/i386/usercall.c b/reactos/ntoskrnl/ke/i386/usercall.c
index 78c977cb933..8e9e3d5915d 100644
--- a/reactos/ntoskrnl/ke/i386/usercall.c
+++ b/reactos/ntoskrnl/ke/i386/usercall.c
@@ -215,7 +215,7 @@ KeUserModeCallback(IN ULONG RoutineIndex,
  * KCALLOUT_FRAME.Result          <= 1st Parameter to KiCallUserMode
  * KCALLOUT_FRAME.ReturnAddress   <= Return address of KiCallUserMode
  * KCALLOUT_FRAME.Ebp             \
- * KCALLOUT_FRAME.Ebx              | = volatile registers, pushed
+ * KCALLOUT_FRAME.Ebx              | = non-volatile registers, pushed
  * KCALLOUT_FRAME.Esi              |   by KiCallUserMode
  * KCALLOUT_FRAME.Edi             /
  * KCALLOUT_FRAME.CallbackStack
diff --git a/reactos/ntoskrnl/ke/i386/usercall_asm.S b/reactos/ntoskrnl/ke/i386/usercall_asm.S
index 2135b8c2517..62078c92d86 100644
--- a/reactos/ntoskrnl/ke/i386/usercall_asm.S
+++ b/reactos/ntoskrnl/ke/i386/usercall_asm.S
@@ -49,7 +49,7 @@ EXTERN @KiUserModeCallout@4:PROC
 PUBLIC _KiCallUserMode@8
 _KiCallUserMode@8:
 
-    /* Push volatile registers on the stack.
+    /* Push non-volatile registers on the stack.
        This is part of the KCALLOUT_FRAME */
     push ebp
     push ebx