diff --git a/README.rdoc b/README.rdoc
index d56a7e43..433e2670 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -27,7 +27,7 @@ If your knife.rb file will be checked into a SCM system (ie readable by others)
You also have the option of passing your AWS API Key/Secret into the individual knife subcommands using the -A (or --aws-access-key-id) -K (or --aws-secret-access-key) command options
# provision a new m1.small Ubuntu 10.04 webserver
- knife ec2 server create 'role[webserver]' -i ami-7000f019 -f m1.small -A 'Your AWS Access Key ID' -K "Your AWS Secret Access Key"
+ knife ec2 server create 'role[webserver]' -I ami-7000f019 -f m1.small -A 'Your AWS Access Key ID' -K "Your AWS Secret Access Key"
Additionally the following options may be set in your `knife.rb`: