diff --git a/p3.md b/p3.md
index b6c50ea9290140f386d592a0f9d07993c973c8c2..1241aa773d4c1d47a1f9a0bbdeae708a289ce90e 100644
--- a/p3.md
+++ b/p3.md
@@ -283,7 +283,7 @@ reversed to get back the public key on which it is based.
 
 Luckily, we have a means of mapping hashes back to hashed data:
 our store.  Your code binding creation code, therefore, should also:
-- write the public key to the store
+- write the PEM-encoded public key to the store
 - put the resulting hash in the binding as the value for
   "PublicKeyHash"