diff --git a/craft.lua b/craft.lua
index b9da119..6f1aa18 100644
--- a/craft.lua
+++ b/craft.lua
@@ -5,4 +5,11 @@ minetest.register_craft({
         {'technic:control_logic_unit', 'basic_materials:ic', ''},
         {'technic:battery', 'technic:battery', ''},
     }
-})
\ No newline at end of file
+})
+
+if minetest.get_modpath("technic") and minetest.get_modpath("space_travel") then
+    technic.register_grinder_recipe({
+        input = {'space_travel:irradiated_space_cobble'},
+        output = {'technic:stone_dust'}
+    })
+end
\ No newline at end of file
diff --git a/mod.conf b/mod.conf
index 0379b66..26339f3 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,7 +1,7 @@
 name = surface_effect
 description = surface effect
 depends = default, persistent_effects, mobs_monster, radiant_damage, hazmat_suit
-optional_depends = technic, farming
+optional_depends = technic, farming, space_travel
 min_minetest_version = 5.7
 title = Surface Effect
 release = 0