diff --git a/config/nrfconnect/app/sample-defaults.conf b/config/nrfconnect/app/sample-defaults.conf
index b5ce9ae9b14412..2fb8be980c6b43 100644
--- a/config/nrfconnect/app/sample-defaults.conf
+++ b/config/nrfconnect/app/sample-defaults.conf
@@ -20,6 +20,7 @@ CONFIG_STD_CPP14=y
 
 CONFIG_LOG=y
 CONFIG_LOG_MODE_MINIMAL=y
+CONFIG_PRINTK_SYNC=y
 CONFIG_ASSERT=y
 CONFIG_HW_STACK_PROTECTION=y
 CONFIG_SHELL=y