diff --git a/app/controllers/projects/environments/prometheus_api_controller.rb b/app/controllers/projects/environments/prometheus_api_controller.rb
index 13b5a300af6..fd3320637b0 100644
--- a/app/controllers/projects/environments/prometheus_api_controller.rb
+++ b/app/controllers/projects/environments/prometheus_api_controller.rb
@@ -14,8 +14,8 @@ class Projects::Environments::PrometheusApiController < Projects::ApplicationCon
 
     if result.nil?
       return render status: :accepted, json: {
-        status: 'processing',
-        message: 'Not ready yet. Try again later.'
+        status: _('processing'),
+        message: _('Not ready yet. Try again later.')
       }
     end
 
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 3a140aef0e7..8f4e118b69f 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -5483,6 +5483,9 @@ msgstr ""
 msgid "Not now"
 msgstr ""
 
+msgid "Not ready yet. Try again later."
+msgstr ""
+
 msgid "Not started"
 msgstr ""
 
@@ -10040,6 +10043,9 @@ msgstr ""
 msgid "private"
 msgstr ""
 
+msgid "processing"
+msgstr ""
+
 msgid "project"
 msgstr ""