diff --git a/code/datums/mind.dm b/code/datums/mind.dm
index 8f33465a57..9ab5abaf32 100644
--- a/code/datums/mind.dm
+++ b/code/datums/mind.dm
@@ -551,11 +551,11 @@
 			text += "<b>HEAD</b> | not mindshielded | employee | headrev | rev"
 		else if (src in SSticker.mode.head_revolutionaries)
 			var/last_healthy_headrev = TRUE
-			for(var/I in SSticker.mode.head_revolutionaries)
+			for(var/datum/mind/I in SSticker.mode.head_revolutionaries)
 				if(I == src)
 					continue
-				var/mob/M = I
-				if((M.z in GLOB.station_z_levels) && !M.stat)
+				var/mob/M = I.current
+				if(M && (M.z in GLOB.station_z_levels) && !M.stat)
 					last_healthy_headrev = FALSE
 					break
 			text += "head | not mindshielded | <a href='?src=\ref[src];revolution=clear'>employee</a> | <b>[last_healthy_headrev ? "<font color='red'>LAST </font> " : ""]HEADREV</b> | <a href='?src=\ref[src];revolution=rev'>rev</a>"