diff --git a/parso/tree.py b/parso/tree.py
index 6108612..5316795 100644
--- a/parso/tree.py
+++ b/parso/tree.py
@@ -338,7 +338,7 @@ class Node(BaseNode):
 
 class ErrorNode(BaseNode):
     """
-    A node that containes valid nodes/leaves that we're follow by a token that
+    A node that contains valid nodes/leaves that we're follow by a token that
     was invalid. This basically means that the leaf after this node is where
     Python would mark a syntax error.
     """