diff --git a/src/include/config.h b/src/include/config.h
index c66477e2be..64664d127d 100644
--- a/src/include/config.h
+++ b/src/include/config.h
@@ -215,6 +215,16 @@ typedef unsigned char slock_t;
 #  define NEED_STRDUP
 #endif
 
+/* This patch changes the behavior of aclcheck for groups. Currently an user
+ * can access a table only if he has the required permission for ALL the groups
+ * defined for that table. With my patch he can access a table if he has the
+ * permission for ONE of the groups, which seems to me a more useful thing.
+ * 
+ * Used in: src/backend/tcop/aclchk.c
+ * Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>
+ */
+#define	ACLGROUP_PATCH
+
 
 /*
  * The following is used as the arg list for signal handlers.  Any ports