diff --git a/dlls/ntoskrnl.exe/ntoskrnl.c b/dlls/ntoskrnl.exe/ntoskrnl.c
index c4c3bab1f12..b4afc1ff1db 100644
--- a/dlls/ntoskrnl.exe/ntoskrnl.c
+++ b/dlls/ntoskrnl.exe/ntoskrnl.c
@@ -2304,6 +2304,7 @@ VOID WINAPI IoCompleteRequest( IRP *irp, UCHAR priority_boost )
 
     if (irp->Flags & IRP_DEALLOCATE_BUFFER)
         HeapFree( GetProcessHeap(), 0, irp->AssociatedIrp.SystemBuffer );
+    if (irp->UserEvent) KeSetEvent( irp->UserEvent, IO_NO_INCREMENT, FALSE );
 
     IoFreeIrp( irp );
 }
diff --git a/dlls/ntoskrnl.exe/tests/driver.c b/dlls/ntoskrnl.exe/tests/driver.c
index 9ad2bb97a37..35a86bb720a 100644
--- a/dlls/ntoskrnl.exe/tests/driver.c
+++ b/dlls/ntoskrnl.exe/tests/driver.c
@@ -752,7 +752,6 @@ static void test_call_driver(DEVICE_OBJECT *device)
     IoCompleteRequest(irp, IO_NO_INCREMENT);
 
     status = wait_single(&event, 0);
-    todo_wine
     ok(status == STATUS_SUCCESS, "got %#x\n", status);
 }