diff --git a/code/modules/mapping/mapping_helpers/network_builder/atmos_pipe.dm b/code/modules/mapping/mapping_helpers/network_builder/atmos_pipe.dm
index 8dc7043aea..1983bab3b6 100644
--- a/code/modules/mapping/mapping_helpers/network_builder/atmos_pipe.dm
+++ b/code/modules/mapping/mapping_helpers/network_builder/atmos_pipe.dm
@@ -1,7 +1,3 @@
-#define NO_KNOT 0
-#define KNOT_AUTO 1
-#define KNOT_FORCED 2
-
 /* Automatically places pipes on init based on any pipes connecting to it and adjacent helpers. Only supports cardinals.
  * Conflicts with ANY PIPE ON ITS LAYER, as well as atmos network build helpers on the same layer, as well as any pipe on all layers. Do those manually.
 */
diff --git a/code/modules/mapping/mapping_helpers/network_builder/power_cables.dm b/code/modules/mapping/mapping_helpers/network_builder/power_cables.dm
index e26f1d314c..5385045618 100644
--- a/code/modules/mapping/mapping_helpers/network_builder/power_cables.dm
+++ b/code/modules/mapping/mapping_helpers/network_builder/power_cables.dm
@@ -182,4 +182,8 @@
 
 /obj/effect/mapping_helpers/network_builder/power_cable/yellow/auto
 	icon_state = "powerlinebuilderauto"
-	knot = KNOT_AUTO
\ No newline at end of file
+	knot = KNOT_AUTO
+
+#undef NO_KNOT
+#undef KNOT_AUTO
+#undef KNOT_FORCED