diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index 348c792dd353ac6274d3f10fb16160e1557b628a..412efbb5f57bbd417364f7476d107ef6607b8de6 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -158,7 +158,7 @@ int32_t tqRetrieveDataBlock(SSDataBlock *pBlock, SStreamReader *pHandle);
 int32_t smaGetTSmaDays(SVnodeCfg *pCfg, void *pCont, uint32_t contLen, int32_t *days);
 
 // SVSnapReader
-int32_t vnodeSnapReaderOpen(SVnode *pVnode, SVSnapReader **ppReader, int64_t sver, int64_t ever);
+int32_t vnodeSnapReaderOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapReader **ppReader);
 int32_t vnodeSnapReaderClose(SVSnapReader *pReader);
 int32_t vnodeSnapRead(SVSnapReader *pReader, const void **ppData, uint32_t *nData);
 // SVSnapWriter;
diff --git a/source/dnode/vnode/src/vnd/vnodeSnapshot.c b/source/dnode/vnode/src/vnd/vnodeSnapshot.c
index 2de1d37d7050d0487b4c37dba56536c1a992b424..ab661b0a54f3565aa3fc936e73f6c92fa747de7b 100644
--- a/source/dnode/vnode/src/vnd/vnodeSnapshot.c
+++ b/source/dnode/vnode/src/vnd/vnodeSnapshot.c
@@ -34,7 +34,7 @@ struct SVSnapWriter {
 };
 
 // SVSnapReader ========================================================
-int32_t vnodeSnapReaderOpen(SVnode *pVnode, SVSnapReader **ppReader, int64_t sver, int64_t ever) {
+int32_t vnodeSnapReaderOpen(SVnode *pVnode, int64_t sver, int64_t ever, SVSnapReader **ppReader) {
   SVSnapReader *pReader = NULL;
 
   pReader = (SVSnapReader *)taosMemoryCalloc(1, sizeof(*pReader));