diff --git a/src/p_sight.c b/src/p_sight.c
index 7ef9b9dd3..63be2f528 100644
--- a/src/p_sight.c
+++ b/src/p_sight.c
@@ -639,16 +639,13 @@ static boolean P_CompareMobjsAcrossLines(mobj_t *t1, mobj_t *t2, register los_fu
 	size_t pnum;
 
 	// First check for trivial rejection.
-	if (!t1 || !t2)
+	if (P_MobjWasRemoved(t1) == true || P_MobjWasRemoved(t2) == true)
 	{
 		return false;
 	}
 
-	I_Assert(!P_MobjWasRemoved(t1));
-	I_Assert(!P_MobjWasRemoved(t2));
-
 	if (!t1->subsector || !t2->subsector
-	|| !t1->subsector->sector || !t2->subsector->sector)
+		|| !t1->subsector->sector || !t2->subsector->sector)
 	{
 		return false;
 	}