diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index 0c7c803fa1058d106dbc0bf7e638d6ed5264dce8..c6f57c40621e24cfe4e567066e604c6c4abe3701 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -129,6 +129,7 @@ int32_t vnodePreProcessWriteMsg(SVnode *pVnode, SRpcMsg *pMsg) {
         }
 
         tEndDecode(&dc);
+        tDecoderClear(&dc);
       }
 
       tEndDecode(&dc);