diff --git a/plinth/modules/samba/__init__.py b/plinth/modules/samba/__init__.py
index 345e3ce6b..f81cd5d88 100644
--- a/plinth/modules/samba/__init__.py
+++ b/plinth/modules/samba/__init__.py
@@ -137,7 +137,11 @@ def get_users():
 
     allowed_users = []
     for group_user in group_users:
-        uid = pwd.getpwnam(group_user).pw_uid
+        try:
+            uid = pwd.getpwnam(group_user).pw_uid
+        except KeyError:  # User doesn't exist
+            continue
+
         if uid > 1000:
             allowed_users.append(group_user)