diff --git a/lib/generators/administrate/routes/routes_generator.rb b/lib/generators/administrate/routes/routes_generator.rb
index cf7b45e3aa..0ef8952b77 100644
--- a/lib/generators/administrate/routes/routes_generator.rb
+++ b/lib/generators/administrate/routes/routes_generator.rb
@@ -43,7 +43,7 @@ def valid_dashboard_models
       end
 
       def database_models
-        ActiveRecord::Base.descendants
+        ActiveRecord::Base.descendants.reject(&:abstract_class?)
       end
 
       def invalid_database_models
diff --git a/spec/generators/routes_generator_spec.rb b/spec/generators/routes_generator_spec.rb
index 3dd17f5770..a5ce3476ab 100644
--- a/spec/generators/routes_generator_spec.rb
+++ b/spec/generators/routes_generator_spec.rb
@@ -21,20 +21,22 @@
       stub_generator_dependencies
       routes = file("config/routes.rb")
 
-      run_generator
+      output = run_generator
 
       expect(routes).not_to contain("delayed/backend/active_record/jobs")
+      expect(output).to include("WARNING: Unable to generate a dashboard for Delayed::Backend::ActiveRecord::Job")
     end
 
-    it "skips models that aren't backed by the database" do
+    it "skips models that aren't backed by the database with a warning" do
       begin
         class ModelWithoutDBTable < ActiveRecord::Base; end
         stub_generator_dependencies
         routes = file("config/routes.rb")
 
-        run_generator
+        output = run_generator
 
         expect(routes).not_to contain("model_without_db_table")
+        expect(output).to include("WARNING: Unable to generate a dashboard for ModelWithoutDBTable")
       ensure
         remove_constants :ModelWithoutDBTable
       end
@@ -54,6 +56,22 @@ def self.table_name
       routes = file("config/routes.rb")
       expect(routes).to have_correct_syntax
     end
+
+    it "skips abstract models without a warning" do
+      stub_generator_dependencies
+      routes = file("config/routes.rb")
+
+      begin
+        class AbstractModel < ActiveRecord::Base
+          self.abstract_class = true
+        end
+
+        output = run_generator
+
+        expect(routes).not_to contain("abstract_model")
+        expect(output).not_to include("WARNING: Unable to generate a dashboard for AbstractModel")
+      end
+    end
   end
 
   it "creates a root route for the admin namespace" do