diff --git a/test/support/test_case.rb b/test/support/test_case.rb
index e2163d471..c9ca263e2 100644
--- a/test/support/test_case.rb
+++ b/test/support/test_case.rb
@@ -16,7 +16,7 @@ def teardown
     end
 
     def remove_temp_file
-      File.unlink(@temp_file)
+      File.unlink(@temp_file) if @temp_file
       @temp_file = nil
     end