diff --git a/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-util b/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-util
index f4441331..e7655346 100644
--- a/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-util
+++ b/profiles/templates/3.5/6_ac_update_sync/world/grp/dev-util
@@ -15,6 +15,7 @@ dev-util/ccache
 !!gtk-builder-convert:0
 !!lttng-modules:0
 !!lttng-tools:0
+!!numdiff:0
 !!pkgconf:0
 !!ply:0
 !!ragel:0
diff --git a/profiles/templates/3.5/6_ac_update_sync/world/grp/sci-physics b/profiles/templates/3.5/6_ac_update_sync/world/grp/sci-physics
index f638e55a..9d37ff76 100644
--- a/profiles/templates/3.5/6_ac_update_sync/world/grp/sci-physics
+++ b/profiles/templates/3.5/6_ac_update_sync/world/grp/sci-physics
@@ -2,4 +2,5 @@
 
 #?in(os_linux_pkglist, CB4)!=#
 #-world(#-cl_pass_file-#)-#
+!!herwig:0
 #in#