diff --git a/src/sys/driver.c b/src/sys/driver.c
index 9151cfab..fe51762c 100644
--- a/src/sys/driver.c
+++ b/src/sys/driver.c
@@ -237,6 +237,8 @@ VOID FspUnload(
 {
     FSP_ENTER_VOID(PAGED_CODE());
 
+    FsRtlDeregisterUncProvider(FspMupHandle);
+
     FspFsctlDiskDeviceObject = 0;
     FspFsctlNetDeviceObject = 0;
     FspFsmupDeviceObject = 0;