diff --git a/authority/provisioner/acme.go b/authority/provisioner/acme.go
index f86ab07d..33fa351c 100644
--- a/authority/provisioner/acme.go
+++ b/authority/provisioner/acme.go
@@ -41,7 +41,8 @@ func (c ACMEChallenge) Validate() error {
 	}
 }
 
-// ACMEPlatform represents the format used on a device-attest-01 challenge.
+// ACMEAttestationFormat represents the format used on a device-attest-01
+// challenge.
 type ACMEAttestationFormat string
 
 const (