diff --git a/roles/add-build-sshkey/README.rst b/roles/add-build-sshkey/README.rst
index ec8697125..5528a88cf 100644
--- a/roles/add-build-sshkey/README.rst
+++ b/roles/add-build-sshkey/README.rst
@@ -30,11 +30,9 @@ newly generated private key.
 .. zuul:rolevar:: zuul_ssh_key_algorithm
    :default: rsa
 
-   The digital signature algorithm to be used to generate the key. Default value
-   'rsa'.
+   The digital signature algorithm to be used to generate the key.
 
 .. zuul:rolevar:: zuul_ssh_key_size
    :default: 3072
 
-   Specifies the number of bits in the key to create. The default length is
-   3072 bits (RSA).
+   Specifies the number of bits in the key to create.
diff --git a/roles/remove-build-sshkey/README.rst b/roles/remove-build-sshkey/README.rst
index d046ac44a..c3d0199ee 100644
--- a/roles/remove-build-sshkey/README.rst
+++ b/roles/remove-build-sshkey/README.rst
@@ -8,3 +8,8 @@ build's SSH key from the authorized_keys files of all remote hosts.
 .. zuul:rolevar:: zuul_temp_ssh_key
 
    Where the per-build SSH private key was stored.
+
+.. zuul:rolevar:: zuul_ssh_key_algorithm
+   :default: rsa
+
+   The digital signature algorithm which was used to generate the key.