diff --git a/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm b/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm
index 10479d57d41..2e7707a725f 100644
--- a/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm
+++ b/code/ATMOSPHERICS/components/unary_devices/vent_pump.dm
@@ -139,7 +139,7 @@
 	if(welded)
 		if(air_contents.return_pressure() >= weld_burst_pressure && prob(5))	//the weld is on but the cover is welded shut, can it withstand the internal pressure?
 			visible_message("<span class='danger'>The welded cover of [src] bursts open!</span>")
-			for(var/mob/M in range(1, src))
+			for(var/mob/living/M in range(1, src))
 				unsafe_pressure_release(M, air_contents.return_pressure())	//let's send everyone flying
 			welded = FALSE
 			update_icon()