diff --git a/test/esmock-loader.mjs b/test/esmock-loader.mjs
new file mode 100644
index 0000000..63485e2
--- /dev/null
+++ b/test/esmock-loader.mjs
@@ -0,0 +1,4 @@
+import { register } from 'node:module';
+import { pathToFileURL } from 'node:url';
+
+register('esmock', pathToFileURL('./'));
\ No newline at end of file