diff --git a/graphic/graphic_2d/native_buffer/native_buffer.h b/graphic/graphic_2d/native_buffer/native_buffer.h
index 771256ac5402a3cfea51e66c389e0799049f1597..0522a5f0a463fded1dc9054a43ef98062d51b3ec 100644
--- a/graphic/graphic_2d/native_buffer/native_buffer.h
+++ b/graphic/graphic_2d/native_buffer/native_buffer.h
@@ -282,7 +282,7 @@ typedef struct {
     int32_t height;          ///< Height in pixels
     int32_t format;          ///< One of PixelFormat
     int32_t usage;           ///< Combination of buffer usage
-    int32_t stride;          ///< the stride of memory
+    int32_t stride;          ///< the stride of memory in bytes
 } OH_NativeBuffer_Config;
 
 /**