diff --git a/sys/pci/if_xl.c b/sys/pci/if_xl.c
index 278759909e9b..cc25b3063ba3 100644
--- a/sys/pci/if_xl.c
+++ b/sys/pci/if_xl.c
@@ -2082,7 +2082,7 @@ static void xl_intr(arg)
 	if (ifp->if_snd.ifq_head != NULL)
 		(*ifp->if_start)(ifp);
 
-	XL_LOCK(sc);
+	XL_UNLOCK(sc);
 
 	return;
 }