diff --git a/src/bitmessagekivy/baseclass/addressbook.py b/src/bitmessagekivy/baseclass/addressbook.py
index 26681383..31b7499a 100644
--- a/src/bitmessagekivy/baseclass/addressbook.py
+++ b/src/bitmessagekivy/baseclass/addressbook.py
@@ -159,8 +159,8 @@ class AddressBook(Screen, HelperAddressBook):
                 UPDATE addressbook
                 SET label = ?
                 WHERE address = ?""", label, self.addbook_popup.content_cls.address)
-            App.get_running_app().root.ids.sc11.ids.ml.clear_widgets()
-            App.get_running_app().root.ids.sc11.loadAddresslist(None, 'All', '')
+            App.get_running_app().root.ids.id_addressbook.ids.ml.clear_widgets()
+            App.get_running_app().root.ids.id_addressbook.loadAddresslist(None, 'All', '')
             self.addbook_popup.dismiss()
             toast('Saved')
 
diff --git a/src/bitmessagekivy/kv/msg_composer.kv b/src/bitmessagekivy/kv/msg_composer.kv
index 75c9be30..2825b415 100644
--- a/src/bitmessagekivy/kv/msg_composer.kv
+++ b/src/bitmessagekivy/kv/msg_composer.kv
@@ -79,7 +79,7 @@
                         if root.is_camara_attached(): app.set_screen('scanscreen')
                         else: root.camera_alert()
                     on_press:
-                        app.root.ids.sc23.get_screen('composer')
+                        app.root.ids.is_scanscreen.get_screen('composer')
 
             MyMDTextField:
                 id: subject
diff --git a/src/bitmessagekivy/kv/popup.kv b/src/bitmessagekivy/kv/popup.kv
index 0a000440..dc373b39 100644
--- a/src/bitmessagekivy/kv/popup.kv
+++ b/src/bitmessagekivy/kv/popup.kv
@@ -154,7 +154,7 @@
             size_hint: 1.5, None
             height: dp(40)
             on_press: app.set_screen('showqrcode')
-            on_press: app.root.ids.sc15.qrdisplay(root, root.address)
+            on_press: app.root.ids.id_showqrcode.qrdisplay(root, root.address)
             MDLabel:
                 font_style: 'H6'
                 text: app.tr._('Show QR code')
diff --git a/src/bitmessagekivy/main.kv b/src/bitmessagekivy/main.kv
index 18bdf48a..1a27099b 100644
--- a/src/bitmessagekivy/main.kv
+++ b/src/bitmessagekivy/main.kv
@@ -233,21 +233,21 @@ MDNavigationLayout:
         MyAddress:
             id:id_myaddress
         AddressBook:
-            id:sc11
+            id:id_addressbook
         Payment:
-            id:sc12
+            id:id_payment
         NetworkStat:
-            id:sc13
+            id:id_network
         MailDetail:
             id:sc14
         ShowQRCode:
-            id:sc15
+            id:id_showqrcode
         Draft:
             id:sc16
         Allmails:
             id:sc17
         ScanScreen:
-            id:sc23
+            id:is_scanscreen
 
     MDNavigationDrawer:
         id: nav_drawer