diff --git a/utils/funcexp/func_lcase.cpp b/utils/funcexp/func_lcase.cpp
index 7de396e47..817e82ae1 100644
--- a/utils/funcexp/func_lcase.cpp
+++ b/utils/funcexp/func_lcase.cpp
@@ -53,7 +53,11 @@ std::string Func_lcase::getStrVal(rowgroup::Row& row, FunctionParm& fp, bool& is
 
   CHARSET_INFO* cs = colType.getCharset();
   uint64_t inLen = tstr.length();
+#if MYSQL_VERSION_ID >= 101004
+  uint64_t bufLen = inLen * cs->casedn_multiply();
+#else
   uint64_t bufLen = inLen * cs->casedn_multiply;
+#endif
   char* outBuf = new char[bufLen];
 
   uint64_t outLen = cs->casedn(tstr.c_str(), inLen, outBuf, bufLen);
diff --git a/utils/funcexp/func_ucase.cpp b/utils/funcexp/func_ucase.cpp
index 4d78fb8b2..9fa00e67d 100644
--- a/utils/funcexp/func_ucase.cpp
+++ b/utils/funcexp/func_ucase.cpp
@@ -62,7 +62,11 @@ std::string Func_ucase::getStrVal(rowgroup::Row& row, FunctionParm& fp, bool& is
 
   CHARSET_INFO* cs = colType.getCharset();
   uint64_t inLen = tstr.length();
-  uint64_t bufLen = inLen * cs->caseup_multiply;
+#if MYSQL_VERSION_ID >= 101004
+  uint64_t bufLen = inLen * cs->casedn_multiply();
+#else
+  uint64_t bufLen = inLen * cs->casedn_multiply;
+#endif
   char* outBuf = new char[bufLen];
 
   uint64_t outLen = cs->caseup(tstr.c_str(), inLen, outBuf, bufLen);