diff --git a/src/common/src/tvariant.c b/src/common/src/tvariant.c
index 3f41730253222e4fe3616136d62354a6491e8094..8ca6a0d81385bdda3422cb35da47264cfa1cecfd 100644
--- a/src/common/src/tvariant.c
+++ b/src/common/src/tvariant.c
@@ -167,7 +167,8 @@ void tVariantCreateFromBinary(tVariant *pVar, const char *pz, size_t len, uint32
       
       break;
     }
-    case TSDB_DATA_TYPE_BINARY: {  // todo refactor, extract a method
+    case TSDB_DATA_TYPE_BINARY:
+    case TSDB_DATA_TYPE_JSON:{  // todo refactor, extract a method
       pVar->pz = calloc(len + 1, sizeof(char));
       memcpy(pVar->pz, pz, len);
       pVar->nLen = (int32_t)len;