diff --git a/buildroot-external/bootloader/uboot.config b/buildroot-external/bootloader/uboot.config
index 3fc6ab3ef..2a21c6d81 100644
--- a/buildroot-external/bootloader/uboot.config
+++ b/buildroot-external/bootloader/uboot.config
@@ -12,7 +12,7 @@ CONFIG_FS_FAT=y
 CONFIG_FS_SQUASHFS=y
 # CONFIG_ENV_IS_IN_FAT is not set
 # CONFIG_ENV_IS_IN_EXT4 is not set
-CONFIG_ENV_IS_NOWHERE=Y
+CONFIG_ENV_IS_NOWHERE=y
 # CONFIG_EFI_LOADER is not set
 CONFIG_CMD_SETEXPR=y
 CONFIG_CMD_FILEENV=y
diff --git a/buildroot-external/kernel/hassos.config b/buildroot-external/kernel/hassos.config
index 93173d5d0..ae6f84f0e 100644
--- a/buildroot-external/kernel/hassos.config
+++ b/buildroot-external/kernel/hassos.config
@@ -2,7 +2,7 @@ CONFIG_KERNEL_LZ4=y
 CONFIG_CMDLINE=""
 CONFIG_PANIC_TIMEOUT=5
 
-CONFIG_PREEMPT=Y
+CONFIG_PREEMPT=y
 # CONFIG_DEBUG_PREEMPT is not set
 
 CONFIG_IKCONFIG=y