diff --git a/config/environments/development.rb b/config/environments/development.rb
index 24155edfa..6261c29c8 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -73,7 +73,7 @@ Rails.application.configure do
   config.active_record.verbose_query_logs = true
 
   # Raises error for missing translations.
-  # config.i18n.raise_on_missing_translations = true
+  config.i18n.raise_on_missing_translations = true
 
   # Annotate rendered view with file names.
   # config.action_view.annotate_rendered_view_with_filenames = true
diff --git a/config/environments/test.rb b/config/environments/test.rb
index dca19f3d1..1c399b19d 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -57,7 +57,7 @@ Rails.application.configure do
   config.active_support.disallowed_deprecation_warnings = []
 
   # Raises error for missing translations.
-  # config.i18n.raise_on_missing_translations = true
+  config.i18n.raise_on_missing_translations = true
 
   # Annotate rendered view with file names.
   # config.action_view.annotate_rendered_view_with_filenames = true