diff --git a/bin/slubsipbuilder.pl b/bin/slubsipbuilder.pl
index 16a6a9b4521f404e11a6d97a9e0b0a938119f101..85c1a12d3c8fd7bbab8a7928746fd49ab91487d4 100755
--- a/bin/slubsipbuilder.pl
+++ b/bin/slubsipbuilder.pl
@@ -191,7 +191,7 @@ sub get_mods_from ($$) { # $mods = ($url, $ppn)
     # my $marc_dc_url = 'http://www.loc.gov/standards/marcxml/xslt/MARC21slim2RDFDC.xsl';
     my $marc_mods_url           = 'http://www.loc.gov/standards/mods/v3/MARC21slim2MODS3-6.xsl';
     my $marc_mods_path          = $xsl_dir . basename($marc_mods_url);
-    my $marc_mods_modified_path = $xsl_dir . basename($marc_mods_url, ".xsl") . ".modified.xsl";
+    my $marc_mods_patched_path = $xsl_dir . basename($marc_mods_url, ".xsl") . ".patched.xsl";
     my $marc_utils_url          = 'http://www.loc.gov/standards/marcxml/xslt/MARC21slimUtils.xsl';
     my $marc_utils_path         = $xsl_dir . basename($marc_utils_url);
 
@@ -212,7 +212,7 @@ sub get_mods_from ($$) { # $mods = ($url, $ppn)
     }
 
     # check MARC21->MODS xsl
-    if (! -f $marc_mods_path) {
+    if (! -f $marc_mods_patched_path) {
         say "Downloading MARC21->MODS xsl '$marc_mods_url'";
         my $result = $ua->get($marc_mods_url);
         if ($result->is_error) {
@@ -224,8 +224,9 @@ sub get_mods_from ($$) { # $mods = ($url, $ppn)
         my $xsl_modified = $xsl;
         $xsl_modified =~ s#$marc_utils_url#$marc_utils_path#g;
         say "Saving MARC21->MODS xsl to file '$marc_mods_path'";
-        write_file($marc_mods_modified_path, $xsl_modified);
+        write_file($marc_mods_patched_path, $xsl_modified);
     }
+
     my $srubase=$url; # host
     my $srusearchkey="pica.ppn";
     my $sruvalue=$ppn;
@@ -255,15 +256,15 @@ sub get_mods_from ($$) { # $mods = ($url, $ppn)
             write_file("DEBUG_${ppn}_marc.xml", $marcblob_patched);
         }
         my $xslt = XML::LibXSLT->new();
-        my $marcmods = XML::LibXML->load_xml(location=>$marc_mods_url, no_cdata=>1);
-        my $stylesheet = $xslt->parse_stylesheet ( $marcmods);
+        my $marcmods = XML::LibXML->load_xml( location=>$marc_mods_patched_path, no_cdata=>1 );
+        my $stylesheet = $xslt->parse_stylesheet( $marcmods );
         my $marc = $parser->parse_string( $marcblob_patched );
-        my $result = $stylesheet->transform( $marc);
+        my $result = $stylesheet->transform( $marc );
         if ($with_debug) {
             say "write DEBUG_${ppn}_unpatched_mods.xml";
             write_file("DEBUG_${ppn}_unpatched_mods.xml", $stylesheet->output_string( $result ));
         }
-        $result = patch_mods( $result);
+        $result = patch_mods( $result );
         my $result_string = $stylesheet->output_string( $result );
         return $result_string;
     } else {