diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index f5bb306ac1..38fd765557 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -494,7 +494,6 @@ static FORCE_INLINE void tscGetResultColumnChr(SSqlRes* pRes, SFieldInfo* pField
   }
 }
 
-extern SCacheObj *tscMetaCache;
 extern SHashObj  *tscHashMap;
 extern SHashObj  *tscTableMetaInfo;