diff --git a/rtmp/rtmp.go b/rtmp/rtmp.go
index 7fcd59bc..aee3ef32 100644
--- a/rtmp/rtmp.go
+++ b/rtmp/rtmp.go
@@ -2189,9 +2189,6 @@ func C_RTMP_Write(r *C_RTMP, buf []byte) int {
 				return -1
 			}
 			buf = buf[4:]
-			if len(buf) < 0 {
-				break
-			}
 		}
 	}
 	return size + len(buf)