diff --git a/.rubocop.yml b/.rubocop.yml
index 2ae06a8d1..b7e8ff672 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -40,3 +40,7 @@ Metrics/LineLength:
 
 Metrics/BlockLength:
   Enabled: false
+  
+RSpec/ExpectActual:
+  Exclude:
+    - 'spec/routing/**'
diff --git a/config/routes.rb b/config/routes.rb
index 0d491109f..b25c3f678 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -9,7 +9,7 @@
       get 'current_version', to: 'sdr#current_version'
       get 'manifest/:dsname', to: 'sdr#ds_manifest', format: false
       get 'metadata/:dsname', to: 'sdr#ds_metadata', format: false
-      get 'content/:filename', to: 'sdr#file_content', format: false
+      get 'content/:filename', to: 'sdr#file_content', format: false, constraints: { filename: /.+/ }
     end
     
     scope '/workflows/:wf_name' do
diff --git a/spec/routing/sdr_controller_spec.rb b/spec/routing/sdr_controller_spec.rb
new file mode 100644
index 000000000..b7763e3db
--- /dev/null
+++ b/spec/routing/sdr_controller_spec.rb
@@ -0,0 +1,10 @@
+require 'rails_helper'
+
+RSpec.describe SdrController, type: :routing do
+  describe 'routing' do
+    it 'routes to #content' do
+      expect(get: '/v1/sdr/objects/druid:mk420bs7601/content/00004692.tif')
+        .to route_to('sdr#file_content', druid: 'druid:mk420bs7601', filename: '00004692.tif')
+    end
+  end
+end