diff --git a/gb.db.postgresql/src/main.h b/gb.db.postgresql/src/main.h
index b45b607f648364bc34cdac0097bb19aeea1560b2..a952b9564b9d65d167c6bf368e5b5947def661bf 100644
--- a/gb.db.postgresql/src/main.h
+++ b/gb.db.postgresql/src/main.h
@@ -25,6 +25,7 @@
 #define __MAIN_H
 
 #include "gambas.h"
+#include "gb_common.h"
 #include "gb.db.h"
 
 #ifndef __MAIN_C