diff --git a/lib/compiler.js b/lib/compiler.js
index c4f0c1d..ad38889 100644
--- a/lib/compiler.js
+++ b/lib/compiler.js
@@ -50,7 +50,11 @@ module.exports.compileTemplate = function compileTemplate(template, context, out
     new SingleEntryPlugin(this.context, template),
     new LoaderTargetPlugin('node')
   );
-  childCompiler.plugin("compilation", function(compilation) {
+  
+  // Fix for "Uncaught TypeError: __webpack_require__(...) is not a function"
+  // Hot module replacement requires that every child compiler has its own
+  // cache. @see https://github.com/ampedandwired/html-webpack-plugin/pull/179
+  childCompiler.plugin('compilation', function(compilation) {
     if(compilation.cache) {
       if(!compilation.cache[compilerName])
         compilation.cache[compilerName] = {};
diff --git a/package.json b/package.json
index cdf3cf4..b932873 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "html-webpack-plugin",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "description": "Simplifies creation of HTML files to serve your webpack bundles",
   "main": "index.js",
   "files": [