diff --git a/src/backend/optimizer/plan/initsplan.c b/src/backend/optimizer/plan/initsplan.c
index b8d1c7e88a3..65d473d95b6 100644
--- a/src/backend/optimizer/plan/initsplan.c
+++ b/src/backend/optimizer/plan/initsplan.c
@@ -32,7 +32,6 @@
 #include "optimizer/restrictinfo.h"
 #include "parser/analyze.h"
 #include "rewrite/rewriteManip.h"
-#include "utils/fmgroids.h"
 #include "utils/lsyscache.h"
 #include "utils/rel.h"
 #include "utils/typcache.h"