diff --git a/interfaces/kits/js/src/mod_fileio/properties/open_v9.cpp b/interfaces/kits/js/src/mod_fileio/properties/open_v9.cpp
index 46727c7e565b9da9b5ffdd6f9fa02c4be61810e9..6ab20d0526447f530221b26165119b2afd7ce02c 100644
--- a/interfaces/kits/js/src/mod_fileio/properties/open_v9.cpp
+++ b/interfaces/kits/js/src/mod_fileio/properties/open_v9.cpp
@@ -40,7 +40,7 @@ static tuple<bool, int> GetJsFlags(napi_env env, const NFuncArg &funcArg)
 {
     int mode = O_RDONLY;
     bool succ = false;
-    if (funcArg.GetArgc() == NARG_CNT::TWO && NVal(env, funcArg[NARG_POS::SECOND]).TypeIs(napi_number)) {
+    if (funcArg.GetArgc() >= NARG_CNT::TWO && NVal(env, funcArg[NARG_POS::SECOND]).TypeIs(napi_number)) {
         tie(succ, mode) = NVal(env, funcArg[NARG_POS::SECOND]).ToInt32();
         if (!succ) {
             UniError(EINVAL).ThrowErr(env);