diff --git a/installer/html-template-to-template-toolkit.pl b/installer/html-template-to-template-toolkit.pl
index fc69ee31c0..347b0d0155 100755
--- a/installer/html-template-to-template-toolkit.pl
+++ b/installer/html-template-to-template-toolkit.pl
@@ -28,7 +28,8 @@ my $tmpl_in_dir      = 'koha-tmpl';
 my $tmpl_out_dir     = 'koha-tt';
 
 # template toolkit variables NOT to scope, in other words, variables that need to remain global (case sensitive)
-my @globals = ("themelang");
+my @globals = ("themelang","JacketImages","OPACAmazonCoverImages","GoogleJackets","BakerTaylorEnabled",
+"SyndeticsEnabled");
 
 # Arguments:
 my $KOHA_ROOT;