diff --git a/ecmascript/builtins/builtins_global_uri.cpp b/ecmascript/builtins/builtins_global_uri.cpp
index bfe1607e501a19255b5e0989315a17857f30ab3f..fc63ddf99c577e24a459a421865047f1c4786de8 100644
--- a/ecmascript/builtins/builtins_global_uri.cpp
+++ b/ecmascript/builtins/builtins_global_uri.cpp
@@ -33,7 +33,7 @@ void BuiltinsGlobal::AppendPercentEncodedByte(std::u16string &sStr, uint8_t byte
 void BuiltinsGlobal::AppendU32Data(std::u16string &resStr, uint32_t data)
 {
     uint8_t len = 0;
-    static std::u16string sStr(u"%00%00%00%00");
+    std::u16string sStr(u"%00%00%00%00");
     if (data <= 0x7F) {          // 0x7F: 1 byte
         AppendPercentEncodedByte(sStr, data, len);
     } else if (data <= 0x7FF) {  // 0x7FF: 2 bytes