diff --git a/core/client.js b/core/client.js
index fec464d6..11c46d17 100644
--- a/core/client.js
+++ b/core/client.js
@@ -7,6 +7,7 @@ var gCurrentFile;
 var gFiles = {};
 var gApp = {files: {}};
 var gEditor;
+var gSplit;
 
 var kErrorColor = "#dc322f";
 var kStatusColor = "#fff";
@@ -76,6 +77,8 @@ function edit() {
 		return;
 	}
 
+	gSplit = Split(['#editPane', '#viewPane'], {minSize: 0});
+
 	ensureLoaded([
 		{tagName: "script", attributes: {src: "/static/codemirror/codemirror.min.js"}},
 		{tagName: "link", attributes: {rel: "stylesheet", href: "/static/codemirror/base16-dark.min.css"}},
@@ -251,6 +254,8 @@ function load() {
 
 function closeEditor() {
 	document.getElementById("editPane").style.display = 'none';
+	gSplit.destroy();
+	gSplit = undefined;
 }
 
 function explodePath() {
@@ -700,7 +705,6 @@ function removeFile() {
 }
 
 window.addEventListener("load", function() {
-	Split(['#editPane', '#viewPane'], {minSize: 0});
 	if (window.Notification) {
 		Notification.requestPermission();
 	}