diff --git a/boards/sim/sim/sim/configs/module/defconfig b/boards/sim/sim/sim/configs/module/defconfig
index 37bdae5a39..5c8e2cb3c5 100644
--- a/boards/sim/sim/sim/configs/module/defconfig
+++ b/boards/sim/sim/sim/configs/module/defconfig
@@ -19,6 +19,7 @@ CONFIG_BOOT_RUNFROMEXTSRAM=y
 CONFIG_BUILTIN=y
 CONFIG_DEV_LOOP=y
 CONFIG_DEV_ZERO=y
+CONFIG_EXAMPLES_LIBTEST=y
 CONFIG_EXAMPLES_MODULE=y
 CONFIG_EXAMPLES_MODULE_DEVMINOR=4
 CONFIG_EXAMPLES_MODULE_DEVPATH="/dev/ram4"