diff --git a/app/helpers/marc_helper.rb b/app/helpers/marc_helper.rb
index eaacceef0..e3a7fccb9 100644
--- a/app/helpers/marc_helper.rb
+++ b/app/helpers/marc_helper.rb
@@ -96,28 +96,27 @@ def contributors_and_works_from_marc(marc)
             href_text = []
             extra_href = []
             field.each do |subfield|
-              unless ["?","="].include?(subfield.code)
-                # $e $i $4
-                if subfield.code == "t"
-                  subt = :now
-                end
-                if subfield.code == "i" and subt == :none
-                  before_text << subfield.value
-                elsif subt == :none
-                  href_text << subfield.value unless ["e","i","4"].include?(subfield.code)
-                  link_text << subfield.value
-                elsif subt == :now or (subt == :passed and subfield.value.strip =~ /[\.|;]$/)
-                  href_text << subfield.value unless ["e","i","4"].include?(subfield.code)
-                  link_text << subfield.value
-                  subt = :passed
-                  subt = :done if subfield.value.strip =~ /[\.|;]$/
-                elsif subt == :done
-                  extra_href << subfield.value unless ["e","i","4"].include?(subfield.code)
-                  extra_text << subfield.value
-                else
-                  href_text << subfield.value unless ["e","i","4"].include?(subfield.code)
-                  link_text << subfield.value
-                end
+              next if Constants::EXCLUDE_FIELDS.include?(subfield.code)
+              # $e $i $4
+              if subfield.code == "t"
+                subt = :now
+              end
+              if subfield.code == "i" and subt == :none
+                before_text << subfield.value
+              elsif subt == :none
+                href_text << subfield.value unless ["e","i","4"].include?(subfield.code)
+                link_text << subfield.value
+              elsif subt == :now or (subt == :passed and subfield.value.strip =~ /[\.|;]$/)
+                href_text << subfield.value unless ["e","i","4"].include?(subfield.code)
+                link_text << subfield.value
+                subt = :passed
+                subt = :done if subfield.value.strip =~ /[\.|;]$/
+              elsif subt == :done
+                extra_href << subfield.value unless ["e","i","4"].include?(subfield.code)
+                extra_text << subfield.value
+              else
+                href_text << subfield.value unless ["e","i","4"].include?(subfield.code)
+                link_text << subfield.value
               end
             end
             href = "\"#{href_text.join(" ")}\""
@@ -135,16 +134,13 @@ def contributors_and_works_from_marc(marc)
             temp_text = ""
             relator_text = []
             field.each do |subfield|
-              unless ["?","="].include?(subfield.code)
-                if subfield.code == "e"
-                  relator_text << subfield.value
-                elsif subfield.code == "4" and relator_text.blank?
-                  relator_text << Constants::RELATOR_TERMS[subfield.value]
-                elsif subfield.code == "6"
-                  nil
-                elsif subfield.code != "e" and subfield.code != "4"
-                  link_text << "#{subfield.value} "
-                end
+              next if Constants::EXCLUDE_FIELDS.include?(subfield.code)
+              if subfield.code == "e"
+                relator_text << subfield.value
+              elsif subfield.code == "4" and relator_text.blank?
+                relator_text << Constants::RELATOR_TERMS[subfield.value]
+              elsif subfield.code != "e" and subfield.code != "4"
+                link_text << "#{subfield.value} "
               end
             end
             temp_text << link_to(link_text.strip, catalog_index_path(:q => "\"#{link_text}\"", :search_field => 'search_author'))
diff --git a/spec/fixtures/marc_records/marc_metadata_fixtures.rb b/spec/fixtures/marc_records/marc_metadata_fixtures.rb
index 2fcc9f09c..87b6627bb 100644
--- a/spec/fixtures/marc_records/marc_metadata_fixtures.rb
+++ b/spec/fixtures/marc_records/marc_metadata_fixtures.rb
@@ -134,6 +134,7 @@ def metadata2
           <subfield code="d">Subject2</subfield>
         </datafield>
         <datafield tag="700" ind1="1" ind2=" ">
+          <subfield code="6">880-04</subfield>
           <subfield code="a">Farruk̲h̲ī, Āṣif,</subfield>
           <subfield code="d">1959-</subfield>
         </datafield>
@@ -432,6 +433,11 @@ def contributor_fixture
           <subfield code="e">Actor</subfield>
           <subfield code="4">prf</subfield>
         </datafield>
+        <datafield tag="700" ind1="1" ind2=" ">
+          <subfield code="6">880-00</subfield>
+          <subfield code="a">Contributor4</subfield>
+          <subfield code="t">Contributor $t</subfield>
+        </datafield>
       </record>
     xml
   end
@@ -865,6 +871,7 @@ def marc_characteristics_fixture
       </record>
     xml
   end
+
   def marc_sections_fixture
     <<-xml
       <record>
diff --git a/spec/helpers/marc_helper_spec.rb b/spec/helpers/marc_helper_spec.rb
index ac350420a..4a4626a99 100644
--- a/spec/helpers/marc_helper_spec.rb
+++ b/spec/helpers/marc_helper_spec.rb
@@ -203,6 +203,13 @@
     it "should not display anything when no contributors are available" do
       expect(link_to_contributor_from_marc(nil_document.to_marc)).to be_nil
     end
+
+    it 'should not display blacklisted fields' do
+      link = contributors_and_works_from_marc(contributor.to_marc)
+      link.each do |_, value|
+        expect(value).to_not match(/880-00/)
+      end
+    end
   end
   describe "#get_toc" do
     let(:bad_toc) { SolrDocument.new(marcxml: bad_toc_fixture) }