diff --git a/development/gnustep-startup/gnustep-startup.SlackBuild b/development/gnustep-startup/gnustep-startup.SlackBuild
index 27f716c72a..a055597e51 100644
--- a/development/gnustep-startup/gnustep-startup.SlackBuild
+++ b/development/gnustep-startup/gnustep-startup.SlackBuild
@@ -91,6 +91,9 @@ cd ..
 mkdir -pv $PKG/opt/
 mv /opt/gnustep/ $PKG/opt/
 
+chown -R root:root $PKG/opt/gnustep/System/Library
+chmod -R go-w $PKG/opt/gnustep/System/Library
+
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
 cp -a ANNOUNCE AUTHORS COPYING ChangeLog INSTALL NEWS README $PKG/usr/doc/$PRGNAM-$VERSION
 cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild