diff --git a/src/raw_sock.c b/src/raw_sock.c
index 477862e..3ae7656 100644
--- a/src/raw_sock.c
+++ b/src/raw_sock.c
@@ -276,9 +276,7 @@
 		}
 	}
 
-	/* let's realign the buffer to optimize I/O */
-	if (buffer_empty(buf))
-		buf->p = buf->data;
+	b_realign_if_empty(buf);
 
 	/* read the largest possible block. For this, we perform only one call
 	 * to recv() unless the buffer wraps and we exactly fill the first hunk,