diff --git a/init.lua b/init.lua
index 1106832..d4c1c7b 100644
--- a/init.lua
+++ b/init.lua
@@ -259,7 +259,7 @@ local function make_dripstone(name, desc, longdesc, tiles, size)
         { description = desc
         , _doc_items_longdesc = longdesc
         , tiles = tiles
-        , groups = { pickaxey=2, material_stone=1 }
+        , groups = { pickaxey=2, material_stone=1, fall_damage_add_percent = math.max(4 - size, 0) / 4 * 100 }
         , is_ground_content = true
         , drop = dry_dripstone_spike
         , sounds = dripstone_sounds