diff --git a/src/cheapGlkOte.js b/src/cheapGlkOte.js
index fbcb931..01ad987 100644
--- a/src/cheapGlkOte.js
+++ b/src/cheapGlkOte.js
@@ -5,8 +5,8 @@
 const GlkOte = require('./glkOte/glkote-term')
 
 class CheapGlkOte extends GlkOte {
-  constructor(handlers, loggers) {
-    super()
+  constructor(handlers, loggers, size) {
+    super(size)
 
     this.current_input_type = null
 
diff --git a/src/glkOte/glkote-term.js b/src/glkOte/glkote-term.js
index f91fdc8..2a4d251 100644
--- a/src/glkOte/glkote-term.js
+++ b/src/glkOte/glkote-term.js
@@ -3,7 +3,10 @@
  */
 
 class GlkOte {
-  constructor() {
+  constructor({width, height}) {
+    this.width = width
+    this.height = height
+
     this.current_metrics = null
     this.disabled = false
     this.generation = 0
@@ -13,8 +16,8 @@ class GlkOte {
 
   measure_window() {
     return {
-      width: 80,
-      height: 25,
+      width: this.width,
+      height: this.height,
       buffercharheight: 1,
       buffercharwidth: 1,
       buffermarginx: 0,
diff --git a/src/index.js b/src/index.js
index b832a4d..397397f 100644
--- a/src/index.js
+++ b/src/index.js
@@ -3,7 +3,7 @@ const CheapGlkOte = require('./cheapGlkOte')
 
 const noop = () => void null
 
-const noopHandlers = [
+const defaultHandlers = [
   'onInit',
   'onUpdateWindows',
   'onUpdateInputs',
@@ -21,12 +21,21 @@ const defaultLoggers = {
   error: console.error
 }
 
-module.exports = (handlers_, loggers = defaultLoggers) => {
+const defaultSize = {
+  width: 80,
+  height: 25
+}
+
+module.exports = (handlers_, {loggers: loggers_, size: size_ } = {}) => {
   const handlers =
-    Object.assign({}, noopHandlers, handlers_)
+    Object.assign({}, defaultHandlers, handlers_)
+  const loggers =
+    Object.assign({}, defaultLoggers, size_)
+  const size =
+    Object.assign({}, defaultSize, size_)
 
   const Dialog = new FakeDialog(handlers, loggers)
-  const GlkOte = new CheapGlkOte(handlers, loggers)
+  const GlkOte = new CheapGlkOte(handlers, loggers, size)
 
   const sendFn = GlkOte.sendFn.bind(GlkOte)