diff --git a/source/portable/NetworkInterface/DriverSAM/gmac_SAM.c b/source/portable/NetworkInterface/DriverSAM/gmac_SAM.c
index e864e1be72..81813f6de1 100644
--- a/source/portable/NetworkInterface/DriverSAM/gmac_SAM.c
+++ b/source/portable/NetworkInterface/DriverSAM/gmac_SAM.c
@@ -621,6 +621,9 @@ uint32_t gmac_dev_read( gmac_device_t * p_gmac_dev,
         return GMAC_RX_NO_DATA;
     }
 
+    /* Return the number of bytes received. */
+    *p_rcv_size = bytesLeft;
+
     /* gmac_dev_poll has confirmed that there is a complete frame at
      * the current position 'ul_rx_idx'
      */
@@ -693,8 +696,6 @@ uint32_t gmac_dev_read( gmac_device_t * p_gmac_dev,
 
     p_gmac_dev->ul_rx_idx = nextIdx;
 
-    *p_rcv_size = bytesLeft;
-
     return GMAC_OK;
 }