diff --git a/allianceauth/optimer/form.py b/allianceauth/optimer/form.py
index 3a870a08..856a36a4 100644
--- a/allianceauth/optimer/form.py
+++ b/allianceauth/optimer/form.py
@@ -15,7 +15,7 @@ class OpForm(forms.Form):
     operation_name = forms.CharField(max_length=254, required=True, label=_("Operation Name"))
     type = forms.CharField(required=False, label=_("Operation Type"))
     fc = forms.CharField(max_length=254, required=True, label=_("Fleet Commander"))
-    duration = forms.CharField(max_length=254, required=True, label=_("Duration"))
+    duration = forms.CharField(max_length=25, required=True, label=_("Duration"))
     description = forms.CharField(
         widget=forms.Textarea(attrs={"rows": 10, "cols": 20, "input_type": "textarea"}),
         required=False,