diff --git a/boards/mro/ctrl-zero-h7/nuttx-config/nsh/defconfig b/boards/mro/ctrl-zero-h7/nuttx-config/nsh/defconfig
index 6de0844627..dedafc8050 100644
--- a/boards/mro/ctrl-zero-h7/nuttx-config/nsh/defconfig
+++ b/boards/mro/ctrl-zero-h7/nuttx-config/nsh/defconfig
@@ -89,6 +89,7 @@ CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
 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