diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 23c2503..932c6a3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,10 +23,10 @@ jobs:
     - run: ruby tests/miner.rb
     - run: ruby tests/painter.rb
     - run: ruby tests/paisley.rb
-    - run: ruby tests/polyglot.rb
     - run: ruby tests/rescue.rb
     - run: ruby tests/simple.rb
     - run: ruby tests/walker.rb
+    - run: ruby tests/recompiler.rb
     # Examples
     - run: ruby examples/experiments/Expression.rb
     - run: ruby examples/experiments/Function.rb
diff --git a/tests/polyglot.rb b/tests/recompiler.rb
similarity index 92%
rename from tests/polyglot.rb
rename to tests/recompiler.rb
index 9863d48..facc7b2 100644
--- a/tests/polyglot.rb
+++ b/tests/recompiler.rb
@@ -1,6 +1,6 @@
 require './tests/hypest'
 
-class Polyglot < Test::Unit::TestCase
+class Recompiler < Test::Unit::TestCase
 
   def intermediate_representation(parser)
     [
@@ -27,7 +27,7 @@ def compile(ir)
       Dot_Compiler,
       Markdown_Compiler
     ].each {|compiler|
-      next if compiler == Cyber_Compiler and not ir[6][0]
+      next if compiler == Cyber_Compiler and (not ir[6][0] or RUBY_ENGINE == 'ruby')
       compiler.compile_domain(*ir)
       compiler.compile_problem(*ir, nil)
       assert_equal(expected, ir)