diff --git a/code/modules/mob/living/silicon/robot/subtypes/thinktank/thinktank_interactions.dm b/code/modules/mob/living/silicon/robot/subtypes/thinktank/thinktank_interactions.dm
index 0c981cb4b2..852c09ff61 100644
--- a/code/modules/mob/living/silicon/robot/subtypes/thinktank/thinktank_interactions.dm
+++ b/code/modules/mob/living/silicon/robot/subtypes/thinktank/thinktank_interactions.dm
@@ -32,7 +32,7 @@
 
 	. = ..()
 
-/mob/living/silicon/robot/platform/attack_ghost(mob/observer/ghost/user)
+/mob/living/silicon/robot/platform/attack_ghost(mob/observer/dead/user)
 
 	if(client || key || stat == DEAD || !ticker || !ticker.mode)
 		return ..()
diff --git a/code/modules/modular_computers/computers/modular_computer/interaction.dm b/code/modules/modular_computers/computers/modular_computer/interaction.dm
index d7e8573010..4cc9c8ba89 100644
--- a/code/modules/modular_computers/computers/modular_computer/interaction.dm
+++ b/code/modules/modular_computers/computers/modular_computer/interaction.dm
@@ -97,7 +97,7 @@
 	uninstall_component(user, portable_drive)
 	update_uis()
 
-/obj/item/modular_computer/attack_ghost(var/mob/observer/ghost/user)
+/obj/item/modular_computer/attack_ghost(var/mob/observer/dead/user)
 	if(enabled)
 		tgui_interact(user)
 	else if(check_rights(R_ADMIN|R_EVENT, 0, user))
diff --git a/code/modules/multiz/ladders.dm b/code/modules/multiz/ladders.dm
index e45e61e482..b4626022bb 100644
--- a/code/modules/multiz/ladders.dm
+++ b/code/modules/multiz/ladders.dm
@@ -89,7 +89,7 @@
 		return FALSE
 	return TRUE
 
-/mob/observer/ghost/may_climb_ladders(var/ladder)
+/mob/observer/dead/may_climb_ladders(var/ladder)
 	return TRUE
 
 /obj/structure/ladder/proc/climbLadder(var/mob/M, var/obj/target_ladder)