diff --git a/spec/lib/generators/rest_api_generator/resource_generator_spec.rb b/spec/lib/generators/rest_api_generator/resource_generator_spec.rb
index 710b378..117e51c 100644
--- a/spec/lib/generators/rest_api_generator/resource_generator_spec.rb
+++ b/spec/lib/generators/rest_api_generator/resource_generator_spec.rb
@@ -34,7 +34,7 @@
     describe "migration file" do
       subject { migration_file("db/migrate/create_users.rb") }
 
-      it { is_expected.to exist }
+      it { is_expected.to be_a_migration }
     end
 
     describe "routes" do