diff --git a/jedi/mixin/builtins.py b/jedi/mixin/builtins.py
index 674c575f..28ddedfe 100644
--- a/jedi/mixin/builtins.py
+++ b/jedi/mixin/builtins.py
@@ -148,7 +148,7 @@ class set():
     def intersection(self, other):
         return self & other
 
-    def symetric_difference(self, other):
+    def symmetric_difference(self, other):
         return self ^ other
 
     def union(self, other):