diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
index 4e4a594..e9aa0b7 100644
--- a/board/lwmon5/lwmon5.c
+++ b/board/lwmon5/lwmon5.c
@@ -527,6 +527,9 @@
 	 */
 	board_early_init_f();
 
+	/* enable the LSB transmitter */
+	gpio_write_bit(CONFIG_SYS_GPIO_LSB_ENABLE, 1);
+
 	/*
 	 * Clear resets
 	 */