diff --git a/code/modules/lighting/~lighting_underfs.dm b/code/modules/lighting/~lighting_undefs.dm
similarity index 76%
rename from code/modules/lighting/~lighting_underfs.dm
rename to code/modules/lighting/~lighting_undefs.dm
index 521fc946a9f..0f3651e15e5 100644
--- a/code/modules/lighting/~lighting_underfs.dm
+++ b/code/modules/lighting/~lighting_undefs.dm
@@ -1,4 +1,4 @@
-	#undef LIGHTING_INTERVAL
+#undef LIGHTING_INTERVAL
 
 #undef LIGHTING_FALLOFF
 #undef LIGHTING_LAMBERTIAN