diff --git a/src/auth.c b/src/auth.c
index e0b3a7d5..92d9f2d2 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -1579,6 +1579,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_request) {
   }
 
   session->kbdint->nprompts = nprompts;
+  session->kbdint->nanswers = nprompts;
   session->kbdint->prompts = malloc(nprompts * sizeof(char *));
   if (session->kbdint->prompts == NULL) {
     session->kbdint->nprompts = 0;