diff --git a/app/services/group_mentions_updater.rb b/app/services/group_mentions_updater.rb
index 96f61396836..5130baa43e6 100644
--- a/app/services/group_mentions_updater.rb
+++ b/app/services/group_mentions_updater.rb
@@ -3,7 +3,7 @@
 class GroupMentionsUpdater
   def self.update(current_name, previous_name)
     Post.where(
-      "cooked LIKE '%class=\"mention-group\"%' AND raw LIKE :previous_name",
+      "cooked LIKE '%class=\"mention-group%' AND raw LIKE :previous_name",
       previous_name: "%@#{previous_name}%"
     ).find_in_batches do |posts|
 
diff --git a/spec/services/group_mentions_updater_spec.rb b/spec/services/group_mentions_updater_spec.rb
index 9d642c75821..2c787af4c85 100644
--- a/spec/services/group_mentions_updater_spec.rb
+++ b/spec/services/group_mentions_updater_spec.rb
@@ -28,6 +28,7 @@ RSpec.describe GroupMentionsUpdater do
         group.update!(name: new_group_name)
         post.reload
 
+        puts post.raw
         expect(post.raw_mentions).to eq([new_group_name])
         expect(post.raw).to eq(expected_raw)