diff --git a/app/services/courses/publish_service.rb b/app/services/courses/publish_service.rb
index 5286a132d9..ccdec1b5f1 100644
--- a/app/services/courses/publish_service.rb
+++ b/app/services/courses/publish_service.rb
@@ -26,6 +26,7 @@ def call
 
     def publish_course
       Course.transaction do
+        course.undiscard
         course.publish_sites
         course.publish_enrichment(user)
         course.application_status_open!
diff --git a/spec/services/courses/publish_service_spec.rb b/spec/services/courses/publish_service_spec.rb
index b4dd8df767..9fe3b00a39 100644
--- a/spec/services/courses/publish_service_spec.rb
+++ b/spec/services/courses/publish_service_spec.rb
@@ -29,6 +29,17 @@
     end
   end
 
+  describe 'when the course is discarded' do
+    let(:course) { create(:course, :publishable, uuid:, discarded_at: 1.minute.ago) }
+
+    it 'the course is undiscarded and published' do
+      allow(Course).to receive(:find_by).with({ uuid: uuid }).and_return(course)
+      subject.call
+      expect(course.reload).to be_published
+      expect(course.reload).to be_undiscarded
+    end
+  end
+
   describe 'publishing the course fails' do
     it 'the course is unpublished' do
       allow(Course).to receive(:find_by).with({ uuid: uuid }).and_return(course)