diff --git a/contrib/pgcrypto/expected/pgp-pubkey-session.out b/contrib/pgcrypto/expected/pgp-pubkey-session.out
index f724d98eb24..e57cb8fab99 100644
--- a/contrib/pgcrypto/expected/pgp-pubkey-session.out
+++ b/contrib/pgcrypto/expected/pgp-pubkey-session.out
@@ -44,4 +44,4 @@ ff62c0a33d9143dd3f639893f47732c11c5a12c6052d1935f4d507b7ae1f76ab0e9a69b8
 7305a7f7c19bd509daf4903bff614bc26d118f03e461469c72c12d3a2bb4f78e4d342ce8
 487723649a01ed2b9eb11c662134502c098d55dfcd361939d8370873422c3da75a515a75
 9ffedfe7df44fb3c20f81650801a30d43b5c90b98b3eee'::bytea);
-ERROR:  Public key too big
+ERROR:  Session key too big
diff --git a/contrib/pgcrypto/px.c b/contrib/pgcrypto/px.c
index a7cb248f6b7..ad0914991b1 100644
--- a/contrib/pgcrypto/px.c
+++ b/contrib/pgcrypto/px.c
@@ -65,7 +65,7 @@ static const struct error_desc px_err_list[] = {
 	{PXE_PGP_UNEXPECTED_PKT, "Unexpected packet in key data"},
 	{PXE_PGP_MATH_FAILED, "Math operation failed"},
 	{PXE_PGP_SHORT_ELGAMAL_KEY, "Elgamal keys must be at least 1024 bits long"},
-	{PXE_PGP_KEY_TOO_BIG, "Public key too big"},
+	{PXE_PGP_KEY_TOO_BIG, "Session key too big"},
 	{PXE_PGP_UNKNOWN_PUBALGO, "Unknown public-key encryption algorithm"},
 	{PXE_PGP_WRONG_KEY, "Wrong key"},
 	{PXE_PGP_MULTIPLE_KEYS,