diff --git a/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-lang b/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-lang
index 6d47fff9..23406c19 100644
--- a/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-lang
+++ b/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-lang
@@ -54,7 +54,7 @@ dev-lang/tk
 dev-lang/tuprolog
 dev-lang/vala:0.32
 dev-lang/vala:0.34
-dev-lang/xsb
+#dev-lang/xsb
 dev-lang/yap
 dev-lang/yasm
 #in#