diff --git a/wasp/apps/alarm.py b/wasp/apps/alarm.py
index 4d87b0c..1792bc6 100644
--- a/wasp/apps/alarm.py
+++ b/wasp/apps/alarm.py
@@ -124,10 +124,15 @@ class AlarmApp:
 
         self.page = _HOME_PAGE
 
+        self.del_alarm_btn = None
         del self.del_alarm_btn
+        self.hours_wid = None
         del self.hours_wid
+        self.min_wid = None
         del self.min_wid
+        self.alarm_checks = None
         del self.alarm_checks
+        self.day_btns = None
         del self.day_btns
 
         self._set_pending_alarms()
@@ -373,4 +378,4 @@ class AlarmApp:
         elif days == 0:
             return "once"
         else:
-            return "cust"
\ No newline at end of file
+            return "cust"
diff --git a/wasp/apps/faces.py b/wasp/apps/faces.py
index 7e3ed3e..9ce8083 100644
--- a/wasp/apps/faces.py
+++ b/wasp/apps/faces.py
@@ -37,8 +37,11 @@ class FacesApp():
         wasp.system.request_event(wasp.EventMask.SWIPE_UPDOWN)
 
     def background(self):
+        self.choices = None
         del self.choices
+        self.choice = None
         del self.choice
+        self.si = None
         del self.si
 
         # When the watch face redraws then the change to the scrolling indicator
diff --git a/wasp/apps/software.py b/wasp/apps/software.py
index 9e764bc..91bde38 100644
--- a/wasp/apps/software.py
+++ b/wasp/apps/software.py
@@ -67,8 +67,11 @@ class SoftwareApp():
                                   wasp.EventMask.SWIPE_UPDOWN)
 
     def background(self):
+        self.si = None
         del self.si
+        self.page = None
         del self.page
+        self.db = None
         del self.db
 
     def get_page(self):