diff --git a/code/modules/mapping/mapping_helpers.dm b/code/modules/mapping/mapping_helpers.dm
index 407a1832406..72c8c4c0d99 100644
--- a/code/modules/mapping/mapping_helpers.dm
+++ b/code/modules/mapping/mapping_helpers.dm
@@ -174,6 +174,8 @@
 /obj/effect/mapping_helpers/airlock/cyclelink_helper_multi/payload(obj/machinery/door/airlock/airlock)
 	if(airlock.closeOtherId)
 		log_mapping("[src] at [AREACOORD(src)] tried to set [airlock] closeOtherId, but it's already set!")
+	else if(!cycle_id)
+		log_mapping("[src] at [AREACOORD(src)] doesn't have a cycle_id to assign to [airlock]!")
 	else
 		airlock.closeOtherId = cycle_id
 
diff --git a/code/modules/power/apc/apc_main.dm b/code/modules/power/apc/apc_main.dm
index 4afe6b87f93..08d4358da6a 100644
--- a/code/modules/power/apc/apc_main.dm
+++ b/code/modules/power/apc/apc_main.dm
@@ -171,7 +171,7 @@
 
 	if(area)
 		if(area.apc)
-			log_mapping("Duplicate APC created at [AREACOORD(src)]")
+			log_mapping("Duplicate APC created at [AREACOORD(src)]. Original at [AREACOORD(area.apc)].")
 		area.apc = src
 
 	update_appearance()