diff --git a/test.rb b/test.rb
index 12e7301..1cbae33 100755
--- a/test.rb
+++ b/test.rb
@@ -62,7 +62,9 @@ REFS = {
   }.freeze,
 }.freeze
 
-@stdin, @stdout, @wait_thr = Open3.popen2 EXE, chdir: __dir__
+workdir = File.expand_path('test', __dir__).freeze
+
+@stdin, @stdout, @wait_thr = Open3.popen2 EXE, workdir, chdir: __dir__
 
 @stdin.sync = true
 @stdout.sync = true
@@ -94,7 +96,7 @@ end
 cmd :REGISTER_SCRIPT,
     { name: :render,
       vars: %i[template format notes note],
-      args: ['test/render.rb',
+      args: ['./render.rb',
              { template: nil },
              { format: nil }],
       stdin: ['{',