diff --git a/MacPass/DocumentWindow.xib b/MacPass/DocumentWindow.xib
index 75a341bd..38780daa 100644
--- a/MacPass/DocumentWindow.xib
+++ b/MacPass/DocumentWindow.xib
@@ -15,6 +15,7 @@
         <customObject id="-3" userLabel="Application"/>
         <window title="Window" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" oneShot="NO" releasedWhenClosed="NO" wantsToBeColor="NO" visibleAtLaunch="NO" frameAutosaveName="DatabaseWindow" animationBehavior="default" id="1">
             <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES"/>
+            <windowCollectionBehavior key="collectionBehavior" fullScreenPrimary="YES"/>
             <rect key="contentRect" x="196" y="240" width="700" height="500"/>
             <rect key="screenRect" x="0.0" y="0.0" width="1680" height="1028"/>
             <view key="contentView" id="2">