diff --git a/snap/local/launcher b/snap/local/launcher
index 92937808f..4ac879b01 100755
--- a/snap/local/launcher
+++ b/snap/local/launcher
@@ -7,7 +7,7 @@ export XDG_SESSION_DESKTOP=gnome
 export XDG_CURRENT_DESKTOP=GNOME
 
 # Fix font / theme
-export _JAVA_OPTIONS='-Dsun.java2d.xrender=true -Dprism.useFontConfig=false -Dawt.useSystemAAFontSettings=on -Dswing.aatext=true -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel -Dswing.crossplatformlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel'
+export _JAVA_OPTIONS="-Dsun.java2d.xrender=true -Dprism.useFontConfig=false -Dawt.useSystemAAFontSettings=on -Dswing.aatext=true -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel -Dswing.crossplatformlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel -Djava.util.prefs.userRoot=$SNAP_USER_COMMON/"
 export JAVA_FONTS=$SNAP/usr/share/fonts/truetype
 exec $JAVA_BIN -jar $SNAP/OpenRocket.jar "$@"