diff --git a/README.md b/README.md
index 429e971..149fb3e 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Notable, it has the following limitations:
 The following variables must be set before calling the role:
 
 - `ssh_ca_dir`: Working directory for the certificate authority
-- `ssh_ca_key_pair`: List of CA key pairs
+- `ssh_ca_key_pairs`: List of CA key pairs
   - `name`: File name of the CA key pair
   - `public_key`: Public key contents on the key pair
   - `private_key`: Private key contents on the key pair