diff --git a/dlls/msvcrt/misc.c b/dlls/msvcrt/misc.c
index c07005a0a28..4e67cba4f41 100644
--- a/dlls/msvcrt/misc.c
+++ b/dlls/msvcrt/misc.c
@@ -394,9 +394,10 @@ unsigned int CDECL _set_output_format(unsigned int new_output_format)
 int CDECL MSVCRT__resetstkoflw(void)
 {
     int stack_addr;
+    DWORD oldprot;
 
     /* causes stack fault that updates NtCurrentTeb()->Tib.StackLimit */
-    return VirtualProtect( &stack_addr, 1, PAGE_GUARD|PAGE_READWRITE, NULL );
+    return VirtualProtect(&stack_addr, 1, PAGE_GUARD|PAGE_READWRITE, &oldprot);
 }
 
 /*********************************************************************