diff --git a/test/dl/test_base.rb b/test/dl/test_base.rb
index b7b5d995dd..b195719866 100644
--- a/test/dl/test_base.rb
+++ b/test/dl/test_base.rb
@@ -134,6 +134,7 @@ module DL
     def teardown
       if /linux/ =~ RUBY_PLATFORM
         GC.start
+      end
     end
   end
 end