diff --git a/app/controllers/projects/issues_controller.rb b/app/controllers/projects/issues_controller.rb
index ed31774bc70..35d1a52b251 100644
--- a/app/controllers/projects/issues_controller.rb
+++ b/app/controllers/projects/issues_controller.rb
@@ -109,9 +109,12 @@ class Projects::IssuesController < Projects::ApplicationController
     service = Issues::CreateService.new(project, current_user, create_params)
     @issue = service.execute
 
-    if service.discussions_to_resolve.any? && service.discussions_to_resolve.all?(&:resolved?)
-      resolve_count = service.discussions_to_resolve.size
-      flash[:notice] = "Resolved #{resolve_count} #{'discussion'.pluralize(resolve_count)}."
+    if service.discussions_to_resolve.count(&:resolved?) > 0
+      flash[:notice] = if params[:discussion_to_resolve].present?
+                         "Resolved 1 discussion."
+                       else
+                         "Resolved all discussions."
+                       end
     end
 
     respond_to do |format|
diff --git a/spec/controllers/projects/issues_controller_spec.rb b/spec/controllers/projects/issues_controller_spec.rb
index 70b1ae237ce..5e70966aa2d 100644
--- a/spec/controllers/projects/issues_controller_spec.rb
+++ b/spec/controllers/projects/issues_controller_spec.rb
@@ -498,22 +498,22 @@ describe Projects::IssuesController do
       it 'sets a flash message' do
         post_issue(title: 'Hello')
 
-        expect(flash[:notice]).to eq('Resolved 1 discussion.')
+        expect(flash[:notice]).to eq('Resolved all discussions.')
       end
 
-      it 'pluralizes the flash message when resolving multiple discussions' do
-        create(:diff_note_on_merge_request, noteable: merge_request, project: project, line_number: 15)
+      describe "resolving a single discussion" do
+        before do
+          post_issue({ title: 'Hello' }, other_params: { discussion_to_resolve: discussion.id })
+        end
+        it 'resolves a single discussion' do
+          discussion.first_note.reload
 
-        post_issue(title: 'Hello')
+          expect(discussion.resolved?).to eq(true)
+        end
 
-        expect(flash[:notice]).to eq('Resolved 2 discussions.')
-      end
-
-      it "resolves a single discussion" do
-        post_issue(other_params: { discussion_to_resolve: discussion.id })
-        discussion.first_note.reload
-
-        expect(discussion.resolved?).to eq(true)
+        it 'sets a flash message that one discussion was resolved' do
+          expect(flash[:notice]).to eq('Resolved 1 discussion.')
+        end
       end
     end