diff -up gnome-tweak-tool-3.8.0/gtweak/tweaks/tweak_shell.py.orig gnome-tweak-tool-3.8.0/gtweak/tweaks/tweak_shell.py
--- gnome-tweak-tool-3.8.0/gtweak/tweaks/tweak_shell.py.orig	2013-03-31 14:25:14.000000000 +0200
+++ gnome-tweak-tool-3.8.0/gtweak/tweaks/tweak_shell.py	2013-07-08 01:18:13.165887083 +0200
@@ -111,7 +111,7 @@ class ShellThemeTweak(Tweak):
             #note: the default theme lives in /system/data/dir/gnome-shell/theme
             #      and not themes/, so add it manually later
             dirs = [os.path.join(d, "themes") for d in GLib.get_system_data_dirs()]
-            dirs += [ShellThemeTweak.THEME_DIR]
+            # dirs += [ShellThemeTweak.THEME_DIR]
             dirs += [ShellThemeTweak.LEGACY_THEME_DIR]
 
             valid = walk_directories(dirs, lambda d:
@@ -180,7 +180,7 @@ class ShellThemeTweak(Tweak):
                 ok, updated = extract_zip_file(
                                 z,
                                 theme_members_path,
-                                os.path.join(ShellThemeTweak.THEME_DIR, theme_name, "gnome-shell"))
+                                os.path.join(ShellThemeTweak.LEGACY_THEME_DIR, theme_name, "gnome-shell"))
 
                 if ok:
                     if updated: