diff --git a/testing/monkey/Kconfig b/testing/monkey/Kconfig
index 6add92a056..10f511a85b 100644
--- a/testing/monkey/Kconfig
+++ b/testing/monkey/Kconfig
@@ -7,6 +7,7 @@ menuconfig TESTING_MONKEY
 	tristate "Monkey test"
 	select UINPUT_TOUCH
 	select UINPUT_BUTTONS
+	select LIBC_PRINT_EXTENSION
 	default n
 
 if TESTING_MONKEY