diff --git a/src/backend/commands/policy.c b/src/backend/commands/policy.c
index 72329834a3..17b48d4959 100644
--- a/src/backend/commands/policy.c
+++ b/src/backend/commands/policy.c
@@ -29,6 +29,7 @@
 #include "nodes/makefuncs.h"
 #include "nodes/pg_list.h"
 #include "parser/parse_clause.h"
+#include "parser/parse_collate.h"
 #include "parser/parse_node.h"
 #include "parser/parse_relation.h"
 #include "rewrite/rewriteManip.h"