diff --git a/dlls/sfc_os/sfc_os.c b/dlls/sfc_os/sfc_os.c
index f4515f20090..6193dda43ef 100644
--- a/dlls/sfc_os/sfc_os.c
+++ b/dlls/sfc_os/sfc_os.c
@@ -55,6 +55,8 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 BOOL WINAPI SfcGetNextProtectedFile(HANDLE handle, PROTECTED_FILE_DATA *data)
 {
     FIXME("%p %p\n", handle, data);
+
+    SetLastError(ERROR_NO_MORE_FILES);
     return FALSE;
 }