diff --git a/AerialUpdater/UI/UpdateCheckWindowController.xib b/AerialUpdater/UI/UpdateCheckWindowController.xib
index 72c83b2..cef0516 100644
--- a/AerialUpdater/UI/UpdateCheckWindowController.xib
+++ b/AerialUpdater/UI/UpdateCheckWindowController.xib
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="17147" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="17154" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
         <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="17147"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="17154"/>
         <capability name="Image references" minToolsVersion="12.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
@@ -19,7 +19,7 @@
         <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
         <customObject id="-3" userLabel="Application" customClass="NSObject"/>
         <window title="Aerial Companion" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" releasedWhenClosed="NO" animationBehavior="default" id="F0z-JX-Cv5">
-            <windowStyleMask key="styleMask" titled="YES"/>
+            <windowStyleMask key="styleMask" titled="YES" closable="YES"/>
             <rect key="contentRect" x="196" y="240" width="480" height="76"/>
             <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1415"/>
             <view key="contentView" id="se5-gp-TjO">