diff --git a/CHANGES.md b/CHANGES.md
index c0996b2e..519bf9be 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+## Fixed
+
+- Backed out use of `preact/debug` in favour of `preact/devtools`, as the debug module tries to override the preact module's render export, which fails due to Webpack enforcing the read-only nature of ES module exports.
+
 # 0.19.1 / 2017-11-04
 
 ## `nwb.config.js` Config Changes
diff --git a/src/preact/renderShim.js b/src/preact/renderShim.js
index 7d37a88c..d46b66c7 100644
--- a/src/preact/renderShim.js
+++ b/src/preact/renderShim.js
@@ -8,8 +8,8 @@ let root = parent.firstChild // If #app already contains elements, hydrate from
 let vnode = null
 
 if (process.env.NODE_ENV === 'development') {
-  // Enable Preact debug output and use of React Developer Tools
-  require('preact/debug')
+  // Enable use of React Developer Tools
+  require('preact/devtools')
 }
 
 function renderEntry(exported) {
diff --git a/templates/preact-app/src/index.js b/templates/preact-app/src/index.js
index 1d386ec4..4f7e6bf9 100644
--- a/templates/preact-app/src/index.js
+++ b/templates/preact-app/src/index.js
@@ -3,8 +3,8 @@ import './index.css'
 import {h, render} from 'preact'
 
 if (process.env.NODE_ENV === 'development') {
-  // Enable Preact debug output and use of React Developer Tools
-  require('preact/debug')
+  // Enable use of React Developer Tools
+  require('preact/devtools')
 }
 
 let root