diff --git a/code/modules/telesci/gps.dm b/code/modules/telesci/gps.dm
index 94639805985..ddb43a387c6 100644
--- a/code/modules/telesci/gps.dm
+++ b/code/modules/telesci/gps.dm
@@ -96,7 +96,7 @@ GLOBAL_LIST_EMPTY(GPS_list)
 	for(var/g in GLOB.GPS_list)
 		var/obj/item/gps/G = g
 		var/turf/GT = get_turf(G)
-		if(!G.tracking || G == src)
+		if(isnull(GT) || !G.tracking || G == src)
 			continue
 		if((G.local || same_z) && (GT.z != T.z))
 			continue