diff --git a/samples/basic/blinky/prj.conf b/samples/basic/blinky/prj.conf
index 7bbd5afcc29..91c3c15b37d 100644
--- a/samples/basic/blinky/prj.conf
+++ b/samples/basic/blinky/prj.conf
@@ -1,2 +1 @@
 CONFIG_GPIO=y
-CONFIG_SERIAL=n