diff --git a/reactos/ntoskrnl/ke/wait.c b/reactos/ntoskrnl/ke/wait.c
index da4e15a182f..26f5aff3e2a 100644
--- a/reactos/ntoskrnl/ke/wait.c
+++ b/reactos/ntoskrnl/ke/wait.c
@@ -765,7 +765,7 @@ KiAcquireFastMutex(IN PFAST_MUTEX FastMutex)
     /* Wait for the event */
     KeWaitForSingleObject(&FastMutex->Gate,
                           WrMutex,
-                          WaitAny,
+                          KernelMode,
                           FALSE,
                           NULL);
 }