diff --git a/test/unit/issue_test.rb b/test/unit/issue_test.rb
index 2227eddab455259eec7df26c8b2b8ec5778a162f..a09da8fbb79379fd6950c88e62409a2c6d1f2f2f 100644
--- a/test/unit/issue_test.rb
+++ b/test/unit/issue_test.rb
@@ -562,7 +562,7 @@ class IssueTest < ActiveSupport::TestCase
       assert_equal 2, assignable_user_ids.length
       
       assignable_user_ids.each do |user_id|
-        assert_equal 1, assignable_user_ids.count(user_id), "User #{user_id} appears more or less than once"
+        assert_equal 1, assignable_user_ids.select {|i| i == user_id}.length, "User #{user_id} appears more or less than once"
       end
     end
   end