diff --git a/code/datums/components/rot.dm b/code/datums/components/rot.dm
index b37c6773f3f2..60791c3522b8 100644
--- a/code/datums/components/rot.dm
+++ b/code/datums/components/rot.dm
@@ -66,7 +66,7 @@
 		return
 
 	// Also no decay if corpse chilled or not organic/undead
-	if(C.bodytemperature <= T0C-10 || (!(C.mob_biotypes & (MOB_ORGANIC & MOB_UNDEAD))))
+	if(C.bodytemperature <= T0C-10 || (!(C.mob_biotypes & (MOB_ORGANIC | MOB_UNDEAD))))
 		return
 
 	..()