diff --git a/drivers/net/mmnif.c b/drivers/net/mmnif.c
index 48e3663c..4e128b51 100644
--- a/drivers/net/mmnif.c
+++ b/drivers/net/mmnif.c
@@ -472,7 +472,7 @@ __inline int mmnif_worker_schedule()
  * 
  * Note: under windows this is kernel space so we take arbitrary 0x41000000 here
  */
-__inline void* mmnif_shmalloc()
+__inline void* mmnif_shmalloc(int size)
 {
 	/* Right now every core has the same buffer for every incoming packet
 	 * this will be removed and a buffer for each Core will be implemented
@@ -491,7 +491,7 @@ __inline void* mmnif_shmalloc()
 	/* We choose a arbitrary address first 
 	 * until i know how to properly allocate shared memory
 	 */
-	RCCE_shmalloc_init(0x80000000,2*8192);
+	RCCE_shmalloc_init(0x80000000,48*8192);
 	mpb_start_address = RCCE_shmalloc(mpb_size*MMNIF_CORES);
 	//mpb_start_address = 0x8000000+ mpb_size * (own_ip_address - router_ip_address);
 	//SHMalloc(&mpb_start_address);
@@ -833,7 +833,7 @@ err_t mmnif_init(struct netif* netif)
 
 	/* Alloc and clear shared memory for rx_buff
 	 */
-	mmnif->rx_buff = mmnif_shmalloc((sizeof(mm_rx_buffer_t) + MMNIF_RX_QUEUELEN * MMNIF_RX_BUFFERLEN) * (MMNIF_CORES-1));
+	mmnif->rx_buff = mmnif_shmalloc();
 	if (!(mmnif->rx_buff)) 
 	{
 		DEBUGPRINTF("mmnif init(): allocating shared memory failed\n");