diff --git a/src/pki_gcrypt.c b/src/pki_gcrypt.c
index e696e422..f78f28b2 100644
--- a/src/pki_gcrypt.c
+++ b/src/pki_gcrypt.c
@@ -1657,6 +1657,7 @@ ssh_signature pki_do_sign_sessionid(const ssh_key key,
         return NULL;
     }
     sig->type = key->type;
+    sig->type_c = key->type_c;
 
     switch(key->type) {
         case SSH_KEYTYPE_DSS: