diff --git a/code/modules/assembly/infrared.dm b/code/modules/assembly/infrared.dm
index ee7fc835ddc..a2810d04e98 100644
--- a/code/modules/assembly/infrared.dm
+++ b/code/modules/assembly/infrared.dm
@@ -244,7 +244,7 @@
 	hit()
 
 /obj/effect/beam/i_beam/Crossed(atom/movable/AM as mob|obj)
-	if(istype(AM, /obj/effect/beam))
+	if(istype(AM, /obj/effect/beam) || !AM.density)
 		return
 	hit()