diff --git a/test/rubygems/test_gem_command_manager.rb b/test/rubygems/test_gem_command_manager.rb
index 4c31eb3bc1..4056ecd831 100644
--- a/test/rubygems/test_gem_command_manager.rb
+++ b/test/rubygems/test_gem_command_manager.rb
@@ -72,6 +72,7 @@ class TestGemCommandManager < Gem::TestCase
   end
 
   def test_find_command_unknown_suggestions
+    omit "randomly fails on ruby/ruby CI" if ENV["GITHUB_ACTION_REPOSITORY"] == "ruby/ruby"
     e = assert_raise Gem::UnknownCommandError do
       @command_manager.find_command "pish"
     end