diff --git a/code/__DEFINES/is_helpers.dm b/code/__DEFINES/is_helpers.dm
index 5cc0a089ed5..ee15b666d46 100644
--- a/code/__DEFINES/is_helpers.dm
+++ b/code/__DEFINES/is_helpers.dm
@@ -38,7 +38,7 @@
 #define isplatingturf(A) (istype(A, /turf/open/floor/plating))
 
 //Mobs
-#define isliving(A) (istype(A, /mob/living))
+#define isliving(A) (is_type_in_typecache(A, GLOB.typecache_living))
 
 #define isbrain(A) (istype(A, /mob/living/brain))
 
@@ -188,4 +188,4 @@ GLOBAL_LIST_INIT(glass_sheet_types, typecacheof(list(
 
 #define is_glass_sheet(O) (is_type_in_typecache(O, GLOB.glass_sheet_types))
 
-#define isblobmonster(O) (istype(O, /mob/living/simple_animal/hostile/blob))
\ No newline at end of file
+#define isblobmonster(O) (istype(O, /mob/living/simple_animal/hostile/blob))