diff --git a/spec/mounted_app/test/dummy/config/application.rb b/spec/mounted_app/test/dummy/config/application.rb
index 23c9c9a75..5be94eeb8 100644
--- a/spec/mounted_app/test/dummy/config/application.rb
+++ b/spec/mounted_app/test/dummy/config/application.rb
@@ -1,3 +1,4 @@
+require "logger"
 require "action_controller/railtie"
 require "action_view/railtie"
 require "shakapacker"
diff --git a/spec/shakapacker/test_app/config/application.rb b/spec/shakapacker/test_app/config/application.rb
index 12a11ac35..e937dd9f6 100644
--- a/spec/shakapacker/test_app/config/application.rb
+++ b/spec/shakapacker/test_app/config/application.rb
@@ -1,3 +1,4 @@
+require "logger"
 require "action_controller/railtie"
 require "action_view/railtie"
 require "shakapacker"