diff --git a/hypha/apply/funds/forms.py b/hypha/apply/funds/forms.py
index b69fcfdeff400bf5e57dc240e519bf5334a54e37..43e77ce53e8120a504ea09c3b8228f0611a3c35f 100644
--- a/hypha/apply/funds/forms.py
+++ b/hypha/apply/funds/forms.py
@@ -300,7 +300,7 @@ class UpdateReviewersForm(ApplicationSubmissionModelForm):
         role_reviewers = [
             user
             for field, user in self.cleaned_data.items()
-            if field in self.role_fields
+            if field in self.role_fields and user
         ]
 
         for field, role in self.role_fields.items():