diff --git a/scripts/eressea/xmas2004.lua b/scripts/eressea/xmas2004.lua
index 6a6bcfa63..92913c183 100644
--- a/scripts/eressea/xmas2004.lua
+++ b/scripts/eressea/xmas2004.lua
@@ -1,6 +1,6 @@
 function use_snowman(u, amount)
   if u.region.terrain == "glacier" then
-    local man = add_unit(u.faction, u.region)
+    local man = unit.create(u.faction, u.region)
     man.race = "snowman"
     man.number = amount
     u:add_item("snowman", -amount)
diff --git a/scripts/tests/eressea.lua b/scripts/tests/eressea.lua
index 767cff742..8a0060088 100644
--- a/scripts/tests/eressea.lua
+++ b/scripts/tests/eressea.lua
@@ -182,3 +182,21 @@ function test_no_uruk()
   local f1 = faction.create("noreply@eressea.de", "uruk", "de")
   assert_equal(f1.race, "orc")
 end
+
+function test_snowman()
+    local r = region.create(0, 0, "glacier")
+    local f = faction.create("noreply@eressea.de", "human", "de")
+    local u = unit.create(f, r, 1)
+    u:add_item("snowman", 1)
+    u:clear_orders()
+    u:add_order("BENUTZEN 1 Schneemann")
+    process_orders()
+    for u2 in r.units do
+        if u2~=u then
+            assert_equal(u2.race, "snowman")
+            u = nil
+            break
+        end
+    end
+    assert_equal(nil, u)
+end