diff --git a/lib/gitlab/satellite/merge_action.rb b/lib/gitlab/satellite/merge_action.rb
index 85615f282c4..5f17aa60b8b 100644
--- a/lib/gitlab/satellite/merge_action.rb
+++ b/lib/gitlab/satellite/merge_action.rb
@@ -118,7 +118,7 @@ module Gitlab
 
         # merge the source branch into the satellite
         # will raise CommandFailed when merge fails
-        repo.git.merge(default_options({no_ff: true}), "-m #{message}", "source/#{merge_request.source_branch}")
+        repo.git.merge(default_options({no_ff: true}), "-m#{message}", "source/#{merge_request.source_branch}")
       rescue Grit::Git::CommandFailed => ex
         handle_exception(ex)
       end