diff --git a/common/forms.py b/common/forms.py
index 57a3d7ff..8d434afe 100644
--- a/common/forms.py
+++ b/common/forms.py
@@ -15,7 +15,7 @@ class KeyValueInput(forms.Widget):
     def get_context(self, name, value, attrs):
         context = super().get_context(name, value, attrs)
         data = json.loads(context['widget']['value'])
-        context['widget']['value'] = [ {p[0]: p[1]} for p in data.items()]
+        context['widget']['value'] = [ {p[0]: p[1]} for p in data.items()] if data else []
         return context
 
     class Media: