diff --git a/code/__DEFINES/flags.dm b/code/__DEFINES/flags.dm
index dc9a439b70..9e8a4f71c2 100644
--- a/code/__DEFINES/flags.dm
+++ b/code/__DEFINES/flags.dm
@@ -90,4 +90,3 @@ GLOBAL_LIST_INIT(bitflags, list(1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 204
 // radiation
 #define RAD_PROTECT_CONTENTS (1<<0)
 #define RAD_NO_CONTAMINATE (1<<1)
-#define RAD_PROTECT_SELF (1<<2)
diff --git a/code/__HELPERS/radiation.dm b/code/__HELPERS/radiation.dm
index 4104e267a7..e082be7d1f 100644
--- a/code/__HELPERS/radiation.dm
+++ b/code/__HELPERS/radiation.dm
@@ -17,8 +17,7 @@
 		processing_list -= thing
 		if(ignored_things[thing.type])
 			continue
-		if(CHECK_BITFIELD(thing.rad_flags, RAD_PROTECT_SELF))
-			. += thing
+		. += thing
 		if((thing.rad_flags & RAD_PROTECT_CONTENTS) || (SEND_SIGNAL(thing, COMSIG_ATOM_RAD_PROBE) & COMPONENT_BLOCK_RADIATION))
 			continue
 		processing_list += thing.contents