Fix typo

diff --git a/expat/README.md b/expat/README.md
index 951bf8bd57b901e3cff687d80874d6d320c12e7e..e5db5972eefbbc1592986858a0003037c8f4e91b 100644 (file)
--- a/expat/README.md
+++ b/expat/README.md
@@ -133,7 +133,7 @@ distribution.
 
 
 The CMake build system is still *experimental* and will replace the primary
-build system based on GNU Autotools at some point when its ready.
+build system based on GNU Autotools at some point when it is ready.
 For an idea of the available (non-advanced) options for building with CMake:
 
 ```console