diff --git a/builtin/game/features.lua b/builtin/game/features.lua
index 051d2aa2a..22bf1859d 100644
--- a/builtin/game/features.lua
+++ b/builtin/game/features.lua
@@ -41,6 +41,7 @@ core.features = {
 	item_meta_range = true,
 	node_interaction_actor = true,
 	moveresult_new_pos = true,
+	override_item_remove_fields = true,
 }
 
 function core.has_feature(arg)
diff --git a/doc/lua_api.md b/doc/lua_api.md
index dca31e4b6..4eea2f7f3 100644
--- a/doc/lua_api.md
+++ b/doc/lua_api.md
@@ -5444,6 +5444,8 @@ Utilities
       node_interaction_actor = true,
       -- "new_pos" field in entity moveresult (5.9.0)
       moveresult_new_pos = true,
+      -- Allow removing definition fields in `minetest.override_item`
+      override_item_remove_fields = true,
   }
   ```
 
diff --git a/games/devtest/mods/unittests/misc.lua b/games/devtest/mods/unittests/misc.lua
index 6ff5c7e84..4bd8002b9 100644
--- a/games/devtest/mods/unittests/misc.lua
+++ b/games/devtest/mods/unittests/misc.lua
@@ -254,3 +254,15 @@ local function test_gennotify_api()
 	assert(#custom == 0, "custom ids not empty")
 end
 unittests.register("test_gennotify_api", test_gennotify_api)
+
+unittests.register("test_item_registration", function()
+	local itemname = "unittests:test_override_item"
+	minetest.register_item(itemname, {description = "foo"})
+	assert(assert(minetest.registered_items[itemname]).description == "foo")
+	minetest.override_item(itemname, {description = "bar"})
+	assert(assert(minetest.registered_items[itemname]).description == "bar")
+	minetest.override_item(itemname, {}, {"description"})
+	assert(assert(minetest.registered_items[itemname]).description == nil)
+	minetest.unregister_item("unittests:test_override_item")
+	assert(minetest.registered_items["unittests:test_override_item"] == nil)
+end)