diff --git a/components/ota/common/diff/wstream.h b/components/ota/common/diff/wstream.h
index bb9736de..4d7c6dac 100644
--- a/components/ota/common/diff/wstream.h
+++ b/components/ota/common/diff/wstream.h
@@ -54,5 +54,5 @@ int wstream_length_get(wstream_t *wstream);
 
 uint8_t *wstream_buf_get(wstream_t *wstream);
 
-#endif /*
_WSTREAM_H_ */
+#endif /*_WSTREAM_H_ */