diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 9810f077cb4..921bf57b07d 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -685,7 +685,7 @@ static WINE_MODREF *import_dll( HMODULE module, const IMAGE_IMPORT_DESCRIPTOR *d
 
 done:
     /* restore old protection of the import address table */
-    NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, NULL );
+    NtProtectVirtualMemory( NtCurrentProcess(), &protect_base, &protect_size, protect_old, &protect_old );
     return wmImp;
 }