diff --git a/lib/open_food_network/i18n_config.rb b/lib/open_food_network/i18n_config.rb
index 838a4308cb..d0d71d0450 100644
--- a/lib/open_food_network/i18n_config.rb
+++ b/lib/open_food_network/i18n_config.rb
@@ -17,7 +17,7 @@ module OpenFoodNetwork
 
     # All locales that can be accessed by the application, including fallbacks.
     def self.available_locales
-      (selectable_locales + [default_locale]).uniq
+      (selectable_locales + [default_locale, source_locale]).uniq
     end
 
     # The default locale that is used when the user doesn't have a preference.
diff --git a/spec/lib/open_food_network/i18n_config_spec.rb b/spec/lib/open_food_network/i18n_config_spec.rb
index 457ce35a49..b69aa8b745 100644
--- a/spec/lib/open_food_network/i18n_config_spec.rb
+++ b/spec/lib/open_food_network/i18n_config_spec.rb
@@ -77,7 +77,7 @@ module OpenFoodNetwork
       end
 
       it "provides the default available locales" do
-        expect(I18nConfig.available_locales).to eq ["en_GB"]
+        expect(I18nConfig.available_locales).to eq ["en_GB", "en"]
       end
     end
 
@@ -92,7 +92,7 @@ module OpenFoodNetwork
       end
 
       it "provides the default available locales" do
-        expect(I18nConfig.available_locales).to eq ["es", "fr", "de"]
+        expect(I18nConfig.available_locales).to eq ["es", "fr", "de", "en"]
       end
     end
   end