diff --git a/rowers/forms.py b/rowers/forms.py
index 290e5f00..65122682 100644
--- a/rowers/forms.py
+++ b/rowers/forms.py
@@ -892,8 +892,11 @@ class RaceResultFilterForm(forms.Form):
                 self.fields['boatclass'].choices = boatclasschoices
                 
             # boattype
-            theboattypees = [record.boattype for record in records]
-            theboattypees = list(set(theboattypees))
+            try:
+                theboattypees = [record.boattype for record in records]
+                theboattypees = list(set(theboattypees))
+            except AttributeError:
+                theboattypees = []
 
             if len(theboattypees)<= 1:
                 del self.fields['boattype']