diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 449c8d3..3078417 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1121,6 +1121,7 @@
 	int pipe = usb_sndbulkpipe(usb_dev, 1);
 	int length;
 	u16 reg;
+	u32 word, len;
 
 	/*
 	 * Add the descriptor in front of the skb.
@@ -1130,6 +1131,17 @@
 	skbdesc->desc = entry->skb->data;
 
 	/*
+	 * Adjust the beacon databyte count. The current number is
+	 * calculated before this function gets called, but falsely
+	 * assumes that the descriptor was already present in the SKB.
+	 */
+	rt2x00_desc_read(skbdesc->desc, 0, &word);
+	len  = rt2x00_get_field32(word, TXD_W0_DATABYTE_COUNT);
+	len += skbdesc->desc_len;
+	rt2x00_set_field32(&word, TXD_W0_DATABYTE_COUNT, len);
+	rt2x00_desc_write(skbdesc->desc, 0, word);
+
+	/*
 	 * Disable beaconing while we are reloading the beacon data,
 	 * otherwise we might be sending out invalid data.
 	 */