diff --git a/README.md b/README.md
index f9ba7e17f8d2..aed360e517f4 100644
--- a/README.md
+++ b/README.md
@@ -136,7 +136,7 @@ this:
 
     $ python3 -m pip install -U mypy
 
-This should automatically installed the appropriate version of
+This should automatically install the appropriate version of
 mypy's parser, typed-ast.  If for some reason it does not, you
 can install it manually: