diff --git a/accounting/views.py b/accounting/views.py
index 5ebd0e2a8f418169e55926c49266ddc7d412316f..ce6bd92818cab0968feecec87bb18661222d6bc9 100644
--- a/accounting/views.py
+++ b/accounting/views.py
@@ -415,7 +415,7 @@ class OperationForm(forms.ModelForm):
                 and self.cleaned_data.get("club") is None
                 and self.cleaned_data.get("club_account") is None
                 and self.cleaned_data.get("company") is None
-                and self.cleaned_data.get("target_label") is None
+                and self.cleaned_data.get("target_label") is ""
             ):
                 self.add_error(
                     "target_type", ValidationError(_("The target must be set."))