diff --git a/client/mysql.cc b/client/mysql.cc
index d73d1d992d7..f95b0912a56 100644
--- a/client/mysql.cc
+++ b/client/mysql.cc
@@ -4735,7 +4735,7 @@ static const char *construct_prompt()
         if (connected)
           processed_prompt.append(mysql_get_server_name(&mysql));
         else
-          processed_prompt.append("unkown");
+          processed_prompt.append("unknown");
         break;
       case 'h':
       {