diff --git a/gracedb/superevents/models.py b/gracedb/superevents/models.py
index 0c9037dfd1355e7e3af4e429c64017e4c9cbfd65..bdd1c6f7075279eedeea3e99112cb7ada80fc1ce 100644
--- a/gracedb/superevents/models.py
+++ b/gracedb/superevents/models.py
@@ -415,9 +415,9 @@ class Superevent(CleanSaveModel, AutoIncrementModel):
         # one that datetime can't parse or that the regex won't match
         pass
 
-    class EventTypeMismatchError(Exception):
+    class EventCategoryMismatchError(Exception):
         # To be raised when an attempt is made to add an event with an
-        # incompatible type
+        # incompatible category
         pass
 
 # Classes for direct foreign key lookups of permissions. Should