Fix typo.
diff --git a/Doc/library/compiler.rst b/Doc/library/compiler.rst
index 991628a..458e653 100644
--- a/Doc/library/compiler.rst
+++ b/Doc/library/compiler.rst
@@ -18,7 +18,7 @@
The :mod:`compiler` package is a Python source to bytecode translator written in
Python. It uses the built-in parser and standard :mod:`parser` module to
-generated a concrete syntax tree. This tree is used to generate an abstract
+generate a concrete syntax tree. This tree is used to generate an abstract
syntax tree (AST) and then Python bytecode.
The full functionality of the package duplicates the built-in compiler provided