diff --git a/code/__DEFINES/gun.dm b/code/__DEFINES/gun.dm
index 4f9745249883..242bf07146c3 100644
--- a/code/__DEFINES/gun.dm
+++ b/code/__DEFINES/gun.dm
@@ -107,16 +107,16 @@
 #define ATTACHMENT_SLOT_GRIP "attach-slot-grip"
 #define ATTACHMENT_SLOT_RAIL "attach-slot-rail"
 
-#define NEW_ATTACHMENT_SLOT_MUZZLE (1<<0)
-#define NEW_ATTACHMENT_SLOT_SCOPE (1<<1)
-#define NEW_ATTACHMENT_SLOT_GRIP (1<<2)
-#define NEW_ATTACHMENT_SLOT_RAIL (1<<3)
+#define BIT_ATTACHMENT_SLOT_MUZZLE (1<<0)
+#define BIT_ATTACHMENT_SLOT_SCOPE (1<<1)
+#define BIT_ATTACHMENT_SLOT_GRIP (1<<2)
+#define BIT_ATTACHMENT_SLOT_RAIL (1<<3)
 
 DEFINE_BITFIELD(attach_slots, list(
-	ATTACHMENT_SLOT_MUZZLE = NEW_ATTACHMENT_SLOT_MUZZLE,
-	ATTACHMENT_SLOT_SCOPE = NEW_ATTACHMENT_SLOT_SCOPE,
-	ATTACHMENT_SLOT_GRIP = NEW_ATTACHMENT_SLOT_GRIP,
-	ATTACHMENT_SLOT_RAIL = NEW_ATTACHMENT_SLOT_RAIL
+	ATTACHMENT_SLOT_MUZZLE = BIT_ATTACHMENT_SLOT_MUZZLE,
+	ATTACHMENT_SLOT_SCOPE = BIT_ATTACHMENT_SLOT_SCOPE,
+	ATTACHMENT_SLOT_GRIP = BIT_ATTACHMENT_SLOT_GRIP,
+	ATTACHMENT_SLOT_RAIL = BIT_ATTACHMENT_SLOT_RAIL
 ))
 
 #define COMSIG_ATTACHMENT_TOGGLE "attach-toggle"