diff --git a/base/forms.py b/base/forms.py
index e7e6911c2..ee54cac65 100644
--- a/base/forms.py
+++ b/base/forms.py
@@ -816,6 +816,10 @@ class RotatingWorkTypeAssignUpdateForm(forms.ModelForm):
     RotatingWorkTypeAssign model's form
     """
 
+    based_on = forms.ChoiceField(
+        choices=BASED_ON, initial="daily", label=_trans("Based on")
+    )
+
     class Meta:
         """
         Meta class for additional options
@@ -1343,6 +1347,10 @@ class RotatingShiftAssignUpdateForm(ModelForm):
     RotatingShiftAssign model's form
     """
 
+    based_on = forms.ChoiceField(
+        choices=BASED_ON, initial="daily", label=_trans("Based on")
+    )
+
     class Meta:
         """
         Meta class for additional options