1 files changed, 2 insertions, 4 deletions
diff --git a/core/fxcrt/fx_extension.cpp b/core/fxcrt/fx_extension.cpp
index 2b290ed79d..10b568ec9e 100644
--- a/core/fxcrt/fx_extension.cpp
+++ b/core/fxcrt/fx_extension.cpp
@@ -251,8 +251,6 @@ void FX_Random_GenerateBase(uint32_t* pBuffer, int32_t iCount) {
 }
 
 #ifdef PDF_ENABLE_XFA
-static const char gs_FX_pHexChars[] = "0123456789ABCDEF";
-
 void FX_GUID_CreateV4(FX_GUID* pGUID) {
   FX_Random_GenerateMT((uint32_t*)pGUID, 4);
   uint8_t& b = ((uint8_t*)pGUID)[6];
@@ -264,8 +262,8 @@ CFX_ByteString FX_GUID_ToString(const FX_GUID* pGUID, bool bSeparator) {
   char* pBuf = bsStr.GetBuffer(40);
   for (int32_t i = 0; i < 16; i++) {
     uint8_t b = reinterpret_cast<const uint8_t*>(pGUID)[i];
-    *pBuf++ = gs_FX_pHexChars[b >> 4];
-    *pBuf++ = gs_FX_pHexChars[b & 0x0F];
+    FXSYS_IntToTwoHexChars(b, pBuf);
+    pBuf += 2;
     if (bSeparator && (i == 3 || i == 5 || i == 7 || i == 9))
       *pBuf++ = L'-';
   }