diff --git a/app/models/hyrax/administrative_set.rb b/app/models/hyrax/administrative_set.rb
index b00661926e..b34af2bef1 100644
--- a/app/models/hyrax/administrative_set.rb
+++ b/app/models/hyrax/administrative_set.rb
@@ -10,7 +10,7 @@ class AdministrativeSet < Hyrax::Resource
 
     attribute :alternative_title, Valkyrie::Types::Set.of(Valkyrie::Types::String)
     attribute :creator,           Valkyrie::Types::Set.of(Valkyrie::Types::String)
-    attribute :description,       Valkyrie::Types::Set.of(Valkyrie::Types::String)
+    attribute :description,       Valkyrie::Types::String
 
     ##
     # @return [Boolean] true
diff --git a/spec/forms/hyrax/forms/administrative_set_form_spec.rb b/spec/forms/hyrax/forms/administrative_set_form_spec.rb
index f054ec338a..8100f0cb16 100644
--- a/spec/forms/hyrax/forms/administrative_set_form_spec.rb
+++ b/spec/forms/hyrax/forms/administrative_set_form_spec.rb
@@ -17,6 +17,22 @@
     end
   end
 
+  describe '#description' do
+    it 'is a single value' do
+      form.description = 'moomin'
+
+      expect { form.sync }
+        .to change { admin_set.description }
+        .to eq 'moomin'
+    end
+
+    it 'is a single value on repopulate' do
+      admin_set.description = 'moomin'
+
+      expect(form).to have_attributes(description: 'moomin')
+    end
+  end
+
   describe '#member_ids' do
     it 'populates as empty' do
       expect { form.prepopulate! }