diff --git a/src/common/backend/catalog/index.cpp b/src/common/backend/catalog/index.cpp
index f2b2b033a1750d7465733c0845770750f8c240a0..fb91d13ad7f4702b425aba85f377d3343fc938fc 100644
--- a/src/common/backend/catalog/index.cpp
+++ b/src/common/backend/catalog/index.cpp
@@ -5700,6 +5700,7 @@ bool ReindexRelation(Oid relid, int flags, int reindexType, void *baseDesc, Adap
         foreach (indexId, indexIds) {
             Oid indexOid = lfirst_oid(indexId);
             Relation indexRel = index_open(indexOid, AccessShareLock);
+            bool index_unique = (indexRel->rd_index && indexRel->rd_index->indisunique);
 
             if ((((uint32)reindexType) & REINDEX_ALL_INDEX) ||
                 ((((uint32)reindexType) & REINDEX_BTREE_INDEX) && (indexRel->rd_rel->relam == BTREE_AM_OID)) ||
@@ -5712,7 +5713,7 @@ bool ReindexRelation(Oid relid, int flags, int reindexType, void *baseDesc, Adap
                     memInfo, dbWide, baseDesc, isTruncGTT);
 
 #ifndef ENABLE_MULTIPLE_NODES
-                if (RelationIsCUFormat(rel) && indexRel->rd_index != NULL && indexRel->rd_index->indisunique) {
+                if (RelationIsCUFormat(rel) && index_unique) {
                     ReindexDeltaIndex(indexOid, InvalidOid);
                 }
 #endif