diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c
index 85c6b613102..30789c1edc5 100644
--- a/src/backend/utils/cache/relcache.c
+++ b/src/backend/utils/cache/relcache.c
@@ -5608,6 +5608,7 @@ load_relcache_init_file(bool shared)
 		rel->rd_rsdesc = NULL;
 		rel->rd_partkeycxt = NULL;
 		rel->rd_partkey = NULL;
+		rel->rd_pdcxt = NULL;
 		rel->rd_partdesc = NULL;
 		rel->rd_partcheck = NIL;
 		rel->rd_indexprs = NIL;