diff --git a/Source/ui_macosx/English.lproj/PreferencesWindow.xib b/Source/ui_macosx/English.lproj/PreferencesWindow.xib
index dc8d2119..2e3f864d 100644
--- a/Source/ui_macosx/English.lproj/PreferencesWindow.xib
+++ b/Source/ui_macosx/English.lproj/PreferencesWindow.xib
@@ -14,7 +14,7 @@
         <customObject id="-1" userLabel="First Responder" customClass="FirstResponder"/>
         <customObject id="-3" userLabel="Application" customClass="NSObject"/>
         <window title="Preferences" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" oneShot="NO" releasedWhenClosed="NO" animationBehavior="default" id="QvC-M9-y7g">
-            <windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES"/>
+            <windowStyleMask key="styleMask" titled="YES" closable="YES"/>
             <windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES"/>
             <rect key="contentRect" x="196" y="240" width="480" height="270"/>
             <rect key="screenRect" x="0.0" y="0.0" width="1280" height="777"/>