1 files changed, 2 insertions, 0 deletions
diff --git a/category.py b/category.py
index 857ef2b..a5f0d6b 100644
--- a/category.py
+++ b/category.py
@@ -95,6 +95,8 @@ class Category:
         return hash((self.argstup(), self.name))
 
     def __eq__(self, other):
+        if not other.__class__ == Category:
+            return False
         return self.name == other.name and self.argstup() == other.argstup()
 
     def argstup(self):