diff --git a/en/device-dev/porting/porting-chip-kernel-overview.md b/en/device-dev/porting/porting-chip-kernel-overview.md
index ff9cfea93f679513103383c44df26920f827706b..e30c0ca821c466a126c2e461740f1ca81d638fa5 100644
--- a/en/device-dev/porting/porting-chip-kernel-overview.md
+++ b/en/device-dev/porting/porting-chip-kernel-overview.md
@@ -16,7 +16,7 @@ The kernel used by module chips is LiteOS Cortex-M, which consists of four modul
**Figure 1** Architecture of the LiteOS Cortex-M kernel
-
+
The directory structure of the kernel is described as follows: