diff --git a/amd-loader.js b/amd-loader.js
index 6ac4a54..b84c42f 100644
--- a/amd-loader.js
+++ b/amd-loader.js
@@ -45,7 +45,7 @@ global.define = function (id, deps, factory) {
             return callback.apply(this, relativeId.map(req))
         }
         
-        var chunks = relativeId.split("!");
+        var chunks = relativeId.split("!").filter(chunk => chunk.length > 0);
         var prefix;
         if (chunks.length >= 2) {
             prefix = chunks[0];
diff --git a/test/node_modules/h!.js b/test/node_modules/h!.js
new file mode 100644
index 0000000..a90cdc5
--- /dev/null
+++ b/test/node_modules/h!.js
@@ -0,0 +1,3 @@
+define(["exports", "moduleId!a"], function(exports, a) {
+    exports.A = a.A;
+});
diff --git a/test/node_modules/i.js b/test/node_modules/i.js
new file mode 100644
index 0000000..ddaeca7
--- /dev/null
+++ b/test/node_modules/i.js
@@ -0,0 +1,3 @@
+define(["exports", "h!"], function(exports, h) {
+    exports.A = h.A;
+});
diff --git a/test/test.js b/test/test.js
index 770b155..5401025 100644
--- a/test/test.js
+++ b/test/test.js
@@ -38,3 +38,11 @@ assert.equal(g.G, "G");
 // TODO
 // node_modules + package
 // async require
+
+console.log("resolve the module name which includes '!'");
+var h = require("h!");
+assert.equal(h.A, "A");
+
+var i = require("i");
+console.log("resolve the module name which ends with '!'");
+assert.equal(i.A, "A");