diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index babbee9d503131150e3e0e710556955ab99c399a..90c9404b0dca68d94883b268d0850c6f4aff6fc4 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -5478,7 +5478,7 @@ int32_t validateFillNode(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SSqlNode* pSqlNo
 
   const char* msg1 = "value is expected";
   const char* msg2 = "invalid fill option";
-  const char* msg3 = "top/bottom not support fill";
+  const char* msg3 = "top/bottom/sample not support fill";
   const char* msg4 = "illegal value or data overflow";
   const char* msg5 = "fill only available for interval query";
   const char* msg6 = "not supported function now";