diff --git a/win32ss/user/ntuser/input.c b/win32ss/user/ntuser/input.c
index 6bfc037ae29..fc7b96b49ce 100644
--- a/win32ss/user/ntuser/input.c
+++ b/win32ss/user/ntuser/input.c
@@ -385,6 +385,7 @@ RawInputThreadMain(VOID)
         ghKeyboardDevice = NULL;
     }
 
+    ExDeleteResourceLite(gpDeviceInfoListMutex);
     ExFreePoolWithTag(gpDeviceInfoListMutex, USERTAG_SYSTEM);
 
     ERR("Raw Input Thread Exit!\n");