diff --git a/src/backend/postgres/gncquery.c b/src/backend/postgres/gncquery.c
index 467b30bd1c..df00d93924 100644
--- a/src/backend/postgres/gncquery.c
+++ b/src/backend/postgres/gncquery.c
@@ -36,6 +36,8 @@
  */
 
 #define _GNU_SOURCE
+#include "config.h"
+
 #include <glib.h>
 #include <string.h>
 
diff --git a/src/backend/postgres/kvp-sql.c b/src/backend/postgres/kvp-sql.c
index 383c74365c..2a35bae830 100644
--- a/src/backend/postgres/kvp-sql.c
+++ b/src/backend/postgres/kvp-sql.c
@@ -32,6 +32,8 @@
  */
 
 #define _GNU_SOURCE
+
+#include "config.h"
 #include <stdlib.h>
 #include <string.h>