diff --git a/source/libs/index/src/indexFilter.c b/source/libs/index/src/indexFilter.c
index a503b82d3a..075408f1b3 100644
--- a/source/libs/index/src/indexFilter.c
+++ b/source/libs/index/src/indexFilter.c
@@ -231,7 +231,9 @@ static int32_t sifInitParam(SNode *node, SIFParam *param, SIFCtx *ctx) {
       SIF_ERR_RET(sifGetValueFromNode(node, &param->condValue));
       param->colId = -1;
       param->colValType = (uint8_t)(vn->node.resType.type);
-      memcpy(param->colName, vn->literal, sizeof(param->colName));
+      if (strlen(vn->literal) <= sizeof(param->colName)) {
+        memcpy(param->colName, vn->literal, strlen(vn->literal));
+      }
       break;
     }
     case QUERY_NODE_COLUMN: {