diff --git a/oml/item/scan.py b/oml/item/scan.py
index 3a0de75..14a95b1 100644
--- a/oml/item/scan.py
+++ b/oml/item/scan.py
@@ -43,6 +43,7 @@ def remove_missing():
                     dirty = True
             if dirty:
                 state.db.session.commit()
+                state.cache.clear('group:')
             for f in File.query:
                 if not state.tasks.connected:
                     return
@@ -107,6 +108,17 @@ def run_scan():
                 added += 1
                 trigger_event('change', {})
 
+def change_path(old, new):
+    new_books = os.path.join(new, 'Books')
+    if not os.path.exists(new_books):
+        ox.makedirs(new)
+        shutil.move(os.path.join(old, 'Books'), new_books)
+        remove_empty_folders(old)
+    else:
+        ox.makedirs(new_books)
+    run_scan()
+    trigger_event('change', {})
+
 def run_import(options=None):
     options = options or {}
     logger.debug('run_import')
diff --git a/oml/tasks.py b/oml/tasks.py
index b389306..88946c2 100644
--- a/oml/tasks.py
+++ b/oml/tasks.py
@@ -29,7 +29,9 @@ class Tasks(Thread):
                 try:
                     action, data = m
                     logger.debug('%s start', action)
-                    if action == 'export':
+                    if action == 'changelibrarypath':
+                        item.scan.change_path(data[0], data[1])
+                    elif action == 'export':
                         export_list(data)
                     elif action == 'getpreview':
                         get_preview(data)
diff --git a/oml/user/api.py b/oml/user/api.py
index f785e9b..509d821 100644
--- a/oml/user/api.py
+++ b/oml/user/api.py
@@ -66,6 +66,11 @@ def setPreferences(data):
             data['contact'] != settings.preferences['contact']
     change_username = 'username' in data and \
             data['username'] != settings.preferences['username']
+    if 'libraryPath' in data and \
+            data['libraryPath'] != settings.preferences['libraryPath']:
+        change_path = [settings.preferences['libraryPath'], data['libraryPath']]
+    else:
+        change_path = False
     update_dict(settings.preferences, data)
     if 'username' in data:
         u = state.user()
@@ -75,8 +80,10 @@ def setPreferences(data):
         Changelog.record(u, 'editusername', data['username'])
     if change_contact:
         Changelog.record(state.user(), 'editcontact', data['contact'])
+    if change_path:
+        state.tasks.queue('changelibrarypath', change_path)
     return settings.preferences
-actions.register(setPreferences)
+actions.register(setPreferences, cache=False)
 
 def resetUI(data):
     '''
@@ -88,7 +95,7 @@ def resetUI(data):
         os.unlink(ui_json)
     settings.ui = settings.pdict(ui_json, settings.config['user']['ui'])
     return settings.ui
-actions.register(resetUI)
+actions.register(resetUI, cache=False)
 
 def setUI(data):
     '''
@@ -99,7 +106,7 @@ def setUI(data):
     '''
     update_dict(settings.ui, data)
     return settings.ui
-actions.register(setUI)
+actions.register(setUI, cache=False)
 
 
 def getUsers(data):