diff --git a/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c b/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
index 595b8a52e8..1e9183a3fa 100644
--- a/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
+++ b/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
@@ -138,7 +138,7 @@ int trx_eth_start(openair0_device *device) {
       }*/
 
     /* adjust MTU wrt number of samples per packet */
-    if(ethernet_tune (device,MTU_SIZE,UDP_IF4p5_PRACH_SIZE_BYTES)!=0)  return -1;
+    //if(ethernet_tune (device,MTU_SIZE,UDP_IF4p5_PRACH_SIZE_BYTES)!=0)  return -1;
     
     if(ethernet_tune (device,RCV_TIMEOUT,999999)!=0)  return -1;
   }