diff --git a/application.c b/application.c
index 58ec825..6481dfe 100644
--- a/application.c
+++ b/application.c
@@ -1187,7 +1187,7 @@ void main(void)
 	if (!swd_set_pins(GPIO_PORT(PB10), GPIO_PIN(PB10), GPIO_PORT(PB2), GPIO_PIN(PB2))) {
 		puts("unknown pins\n");
 	} else {
-		swd_setup(100000); // setup SWD clock to 100 KHz, slow enough for any target and loose connection
+		swd_setup(50000); // setup SWD clock to 50 KHz, slow enough for any target and loose connection
 		puts("OK\n");
 	}