diff --git a/filter-injector.lua b/filter-injector.lua
index 0f651fb..dd3883d 100644
--- a/filter-injector.lua
+++ b/filter-injector.lua
@@ -170,7 +170,8 @@ local function punch_filter(data, filtpos, filtnode, msg)
 	local fakePlayer = {
 		get_player_name = delay(owner),
 		is_fake_player = ":pipeworks",
-		get_wielded_item = delay(ItemStack(nil))
+		get_wielded_item = delay(ItemStack(nil)),
+		is_player = delay(true)
 	} -- TODO: use a mechanism as the wielder one
 	local dir = pipeworks.facedir_to_right_dir(filtnode.param2)
 	local frompos = vector.subtract(filtpos, dir)