diff --git a/drivers/staging/wimax/i2400m/fw.c b/drivers/staging/wimax/i2400m/fw.c
index 997085706337..edb5eba0898b 100644
--- a/drivers/staging/wimax/i2400m/fw.c
+++ b/drivers/staging/wimax/i2400m/fw.c
@@ -636,7 +636,7 @@ ssize_t i2400m_bm_cmd(struct i2400m *i2400m,
  *
  * @i2400m: device descriptor
  * @chunk: the buffer to write
- * @chunk_len: length of the buffer to write
+ * @__chunk_len: length of the buffer to write
  * @addr: address in the device memory space
  * @direct: bootrom write mode
  * @do_csum: should a checksum validation be performed