diff --git a/boards/cubepilot/cubeyellow/nuttx-config/nsh/defconfig b/boards/cubepilot/cubeyellow/nuttx-config/nsh/defconfig
index 3ac5c5c39d..5bbe02f0e9 100644
--- a/boards/cubepilot/cubeyellow/nuttx-config/nsh/defconfig
+++ b/boards/cubepilot/cubeyellow/nuttx-config/nsh/defconfig
@@ -88,6 +88,7 @@ CONFIG_LIBC_STRERROR=y
 CONFIG_FS_PROCFS_MAX_TASKS=64
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
+CONFIG_MKFATFS_BUFFER_ALIGMENT=32
 CONFIG_MMCSD=y
 CONFIG_MMCSD_SDIO=y
 CONFIG_MMCSD_SDIOWAIT_WRCOMPLETE=y