diff --git a/README.md b/README.md
index d1f8ba81..92a4e012 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# A open letter in support of RMS.
+# An open letter in support of RMS.
 
 To sign, create a file in `_data/signed/` named `<username>.yaml` with the following content: