diff --git a/code/game/turfs/turf.dm b/code/game/turfs/turf.dm
index 814f1d22bff..bf8afc7e376 100644
--- a/code/game/turfs/turf.dm
+++ b/code/game/turfs/turf.dm
@@ -35,6 +35,7 @@
 	var/movement_cost = 0 // How much the turf slows down movement, if any.
 
 // Parent code is duplicated in here instead of ..() for performance reasons.
+// There's ALSO a copy of this in mine_turfs.dm!
 /turf/Initialize(mapload, ...)
 	if (initialized)
 		crash_with("Warning: [src]([type]) initialized multiple times!")
diff --git a/code/modules/mining/mine_turfs.dm b/code/modules/mining/mine_turfs.dm
index 9e52ebc912a..51da8b722f0 100644
--- a/code/modules/mining/mine_turfs.dm
+++ b/code/modules/mining/mine_turfs.dm
@@ -40,7 +40,7 @@
 	has_resources = 1
 
 // Copypaste parent call for performance.
-/turf/simulated/mineral/Initialize()
+/turf/simulated/mineral/Initialize(mapload)
 	if (initialized)
 		crash_with("Warning: [src]([type]) initialized multiple times!")
 
@@ -54,6 +54,8 @@
 		luminosity = 1
 
 	has_opaque_atom = TRUE
+	if (!mapload)
+		regenerate_ao()
 
 	if (smooth)
 		pixel_x = -4
@@ -519,7 +521,7 @@
 	roof_type = null
 
 // Copypaste parent for performance.
-/turf/simulated/floor/asteroid/Initialize()
+/turf/simulated/floor/asteroid/Initialize(mapload)
 	if(initialized)
 		crash_with("Warning: [src]([type]) initialized multiple times!")
 	initialized = TRUE
@@ -534,6 +536,9 @@
 	if(prob(20))
 		overlay_detail = rand(0,9)
 
+	if (mapload && permit_ao)
+		queue_ao()
+
 	if (smooth)
 		pixel_x = -4
 		pixel_y = -4
@@ -787,4 +792,4 @@
 
 /turf/simulated/mineral/Destroy()
 	clear_ore_effects()
-	. = ..()
\ No newline at end of file
+	. = ..()