diff --git a/src/client.c b/src/client.c
index b1772b9..b02c31f 100644
--- a/src/client.c
+++ b/src/client.c
@@ -358,7 +358,7 @@ lwmqtt_err_t lwmqtt_connect(lwmqtt_client_t *client, lwmqtt_options_t options, l
   client->timer_set(client->command_timer, timeout);
 
   // save keep alive interval (take 75% to be a little earlier than actually needed)
-  client->keep_alive_interval = (uint32_t)(options.keep_alive * 750);
+  client->keep_alive_interval = (uint32_t)(options.keep_alive) * 750;
 
   // set keep alive timer
   client->timer_set(client->keep_alive_timer, client->keep_alive_interval);