diff --git a/main/main.c b/main/main.c
index 0eed038..0179473 100644
--- a/main/main.c
+++ b/main/main.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <string.h>
+#include <inttypes.h>
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/event_groups.h"
@@ -256,7 +257,7 @@ static int cmd_iperf(int argc, char **argv)
         cfg.bw_lim = iperf_args.bw->ival[0];
     }
 
-    ESP_LOGI(TAG, "mode=%s-%s sport=%u, dip=%u.%u.%u.%u:%u, interval=%u, time=%u",
+    ESP_LOGI(TAG, "mode=%s-%s sport=%u, dip=%u.%u.%u.%u:%u, interval=%" PRIu32 ", time=%" PRIu32,
              (cfg.flag & IPERF_FLAG_TCP) ? "tcp" : "udp",
              (cfg.flag & IPERF_FLAG_SERVER) ? "server" : "client",
              cfg.sport,