diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 0be3230c2a..bbf725dfbc 100644
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -112,6 +112,7 @@
 #include "storage/ipc.h"
 #include "storage/pg_shmem.h"
 #include "storage/pmsignal.h"
+#include "storage/proc.h"
 #include "tcop/tcopprot.h"
 #include "utils/builtins.h"
 #include "utils/datetime.h"