diff --git a/extensions-builtin/sdnext-modernui b/extensions-builtin/sdnext-modernui
index eea48d6a2..452b7044b 160000
--- a/extensions-builtin/sdnext-modernui
+++ b/extensions-builtin/sdnext-modernui
@@ -1 +1 @@
-Subproject commit eea48d6a2ee513f3d7640616675027a399d211ad
+Subproject commit 452b7044b85326436c3ac73e722cd1a1d482ecfb
diff --git a/modules/ui_control_helpers.py b/modules/ui_control_helpers.py
index 2d79e17a7..7794c5c58 100644
--- a/modules/ui_control_helpers.py
+++ b/modules/ui_control_helpers.py
@@ -49,6 +49,7 @@ def initialize():
 
 
 def interrogate():
+    prompt = None
     if input_source is None or len(input_source) == 0:
         shared.log.warning('Interrogate: no input source')
     try: