diff --git a/protos/sigstore_common.proto b/protos/sigstore_common.proto
index 1aeebf1a..98a4f2a7 100644
--- a/protos/sigstore_common.proto
+++ b/protos/sigstore_common.proto
@@ -68,7 +68,7 @@ message HashOutput {
         bytes digest = 2;
 }
 
-// KnownSignatureAlgorithm captures the signature/hash algorithm combinations
+// KnownSignatureAlgorithm captures the public key/hash algorithm combinations
 // recommended in the Sigstore ecosystem.
 //
 // This is modelled as a linear set as we want to provide a small number of