diff --git a/contrib/intarray/_int_bool.c b/contrib/intarray/_int_bool.c
index 468a53a7bbb..57c02198363 100644
--- a/contrib/intarray/_int_bool.c
+++ b/contrib/intarray/_int_bool.c
@@ -3,6 +3,7 @@
  */
 #include "postgres.h"
 
+#include "miscadmin.h"
 #include "utils/builtins.h"
 
 #include "_int.h"