diff --git a/configs/stm32f3discovery/ostest/defconfig b/configs/stm32f3discovery/ostest/defconfig
index 8dad4a846f4..f5a51ccc5f8 100644
--- a/configs/stm32f3discovery/ostest/defconfig
+++ b/configs/stm32f3discovery/ostest/defconfig
@@ -280,7 +280,7 @@ CONFIG_DEV_CONSOLE=y
 # CONFIG_FDCLONE_STDIO is not set
 CONFIG_SDCLONE_DISABLE=y
 # CONFIG_SCHED_WORKQUEUE is not set
-# CONFIG_SCHED_WAITPID is not set
+CONFIG_SCHED_WAITPID=y
 # CONFIG_SCHED_STARTHOOK is not set
 # CONFIG_SCHED_ATEXIT is not set
 # CONFIG_SCHED_ONEXIT is not set