Index: pgq/triggers/stringutil.c
===================================================================
--- pgq.orig/triggers/stringutil.c
+++ pgq/triggers/stringutil.c
@@ -26,6 +26,9 @@
 #if PG_VERSION_NUM >= 90300
 #include <access/htup_details.h>
 #endif
+#if PG_VERSION_NUM >= 160000
+#include <varatt.h>
+#endif
 
 #include "stringutil.h"
 
