diff --git a/samples/subsys/fs/zms/prj.conf b/samples/subsys/fs/zms/prj.conf
index 343c5021899e..5fe97a25a909 100644
--- a/samples/subsys/fs/zms/prj.conf
+++ b/samples/subsys/fs/zms/prj.conf
@@ -3,3 +3,4 @@ CONFIG_FLASH_MAP=y
 
 CONFIG_ZMS=y
 CONFIG_LOG=y
+CONFIG_LOG_MODE_IMMEDIATE=y