diff --git a/src/satip/rtp.c b/src/satip/rtp.c
index 040eeb4..e0d1003 100644
--- a/src/satip/rtp.c
+++ b/src/satip/rtp.c
@@ -33,7 +33,7 @@

 #define RTP_PACKETS 128
 #define RTP_PAYLOAD (7*188+12)
-#define RTP_TCP_PAYLOAD (87*188+12+4) /* cca 16kB */
+#define RTP_TCP_PAYLOAD ((6*7*188)+12+4) /* less than 8kB (FFMpeg and others have troubles with >8kB) */
 #define RTCP_PAYLOAD (1420)

 #define RTP_TCP_BUFFER_SIZE (64*1024*1024)