diff --git a/lib/require-module-hook.js b/lib/require-module-hook.js
index dffee4182ccfad813850d23cb9eea159dac7fea0..55011cb5b8953b5e7b942598875419eb4d940ee5 100644
--- a/lib/require-module-hook.js
+++ b/lib/require-module-hook.js
@@ -60,7 +60,7 @@ function hook(modules, requireCallback) {
             try {
                 let res = resolve.sync(moduleName, {basedir: basedir});
                 if (res !== filename) {
-                    enhanceFile = moduleName + "_" + (pathSegment[pathSegment.length - 1].split("."))[0];
+                    enhanceFile = pathSegment[pathSegment.length - 1].split(".")[0];
                     matchModuleName = moduleName + ":" + pathSegment[pathSegment.length - 1];
                 } else {
                     matchModuleName = moduleName;