diff --git a/include/hardware/hdmi_cec.h b/include/hardware/hdmi_cec.h
index 646dc45..95c0c4e 100644
--- a/include/hardware/hdmi_cec.h
+++ b/include/hardware/hdmi_cec.h
@@ -339,7 +339,7 @@
      * some reason. HAL implementation should take the situation into account
      * so as not to wait forever for the message to get sent out.
      *
-     * It should not try retransmission because it's handled by upper layer.
+     * It should try retransmission at least once as specified in the standard.
      *
      * Returns error code. See HDMI_RESULT_SUCCESS, HDMI_RESULT_NACK, and
      * HDMI_RESULT_BUSY.