diff --git a/README.md b/README.md
index 0e13301..236e884 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ The primary use case is:
 
 A second use case is around host keys:
 
-  A server is launched into the cloud by an adminstrator and made
+  A server is launched into the cloud by an administrator and made
   available to other users over SSH. The first time a user connects to
   that machine she is prompted to inspect the host key fingerprint and
   type either "yes" or "no". Most users blindly type yes. By signing a