diff --git a/code/__DEFINES/maps.dm b/code/__DEFINES/maps.dm
index dc312a8e50..a3ad0a8e68 100644
--- a/code/__DEFINES/maps.dm
+++ b/code/__DEFINES/maps.dm
@@ -137,6 +137,7 @@ require only minor tweaks.
 	ZTRAIT_LAVA_UNDERGROUND = TRUE, \
 	ZTRAIT_BOMBCAP_MULTIPLIER = 2, \
 	ZTRAIT_UP = 1, \
+	ZTRAIT_ASHSTORM = FALSE, \
 	ZTRAIT_BASETURF = /turf/open/lava/smooth/lava_land_surface)
 
 #define ZTRAITS_DINER list(ZTRAIT_DINER = TRUE, ZTRAIT_BOMBCAP_MULTIPLIER = 0.5)