diff --git a/drivers/net/e1000.c b/drivers/net/e1000.c
index 8316854..5cc54ef 100644
--- a/drivers/net/e1000.c
+++ b/drivers/net/e1000.c
@@ -1181,7 +1181,7 @@
 		return;
 
 	swsm = E1000_READ_REG(hw, SWSM);
-	if (hw->mac_type == e1000_80003es2lan) {
+	if (hw->mac_type == e1000_80003es2lan || hw->mac_type == e1000_igb) {
 		/* Release both semaphores. */
 		swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
 	} else