diff --git a/tests/commonjs_source_naming.phpt b/tests/commonjs_source_naming.phpt
new file mode 100644
index 0000000..b57acfa
--- /dev/null
+++ b/tests/commonjs_source_naming.phpt
@@ -0,0 +1,27 @@
+--TEST--
+Test V8Js::setModuleLoader : Module source naming
+--SKIPIF--
+<?php require_once(dirname(__FILE__) . '/skipif.inc'); ?>
+--FILE--
+<?php
+
+$JS = <<< EOT
+require('./foo//bar');
+EOT;
+
+$v8 = new V8Js();
+$v8->setModuleLoader(function($module) {
+    // return code with syntax errors to provoke script exception
+    return "foo(blar);";
+});
+
+try {
+    $v8->executeString($JS, 'commonjs_source_naming.js');
+} catch (V8JsScriptException $e) {
+    var_dump($e->getJsFileName());
+}
+?>
+===EOF===
+--EXPECT--
+string(7) "foo/bar"
+===EOF===
diff --git a/v8js_methods.cc b/v8js_methods.cc
index ed488b2..889a707 100644
--- a/v8js_methods.cc
+++ b/v8js_methods.cc
@@ -326,7 +326,7 @@ V8JS_METHOD(require)
 	// Enter the module context
 	v8::Context::Scope scope(context);
 	// Set script identifier
-	v8::Local<v8::String> sname = V8JS_SYM("require");
+	v8::Local<v8::String> sname = V8JS_SYM(normalised_module_id);
 
 	v8::Local<v8::String> source = V8JS_STRL(Z_STRVAL_P(module_code), Z_STRLEN_P(module_code));
 	zval_ptr_dtor(&module_code);