diff --git a/mods/ctf/ctf_flag/init.lua b/mods/ctf/ctf_flag/init.lua
index 7755523..f459541 100644
--- a/mods/ctf/ctf_flag/init.lua
+++ b/mods/ctf/ctf_flag/init.lua
@@ -77,9 +77,9 @@ end
 local old_is_protected = minetest.is_protected
 local r = ctf.setting("flag.nobuild_radius")
 local rs = r * r
-function minetest.is_protected(pos, name)
+function minetest.is_protected(pos, name, ...)
 	if r <= 0 or rs == 0 then
-		return old_is_protected(pos, name)
+		return old_is_protected(pos, name, ...)
 	end
 
 	local flag, distSQ = ctf_flag.get_nearest(pos)
@@ -88,7 +88,7 @@ function minetest.is_protected(pos, name)
 			"Too close to the flag to build! Leave at least " .. r .. " blocks around the flag.")
 		return true
 	else
-		return old_is_protected(pos, name)
+		return old_is_protected(pos, name, ...)
 	end
 end
 
diff --git a/mods/ctf/ctf_map/ctf_map_core/barrier.lua b/mods/ctf/ctf_map/ctf_map_core/barrier.lua
index d39b9d5..0176bf7 100644
--- a/mods/ctf/ctf_map/ctf_map_core/barrier.lua
+++ b/mods/ctf/ctf_map/ctf_map_core/barrier.lua
@@ -214,9 +214,9 @@ end
 
 if minetest.get_modpath("ctf") then
 	local old_is_protected = minetest.is_protected
-	function minetest.is_protected(pos, name)
+	function minetest.is_protected(pos, name, ...)
 		if ctf_match.build_timer <= 0 then
-			return old_is_protected(pos, name)
+			return old_is_protected(pos, name, ...)
 		end
 
 		local tname = ctf.player(name).team
@@ -225,7 +225,7 @@ if minetest.get_modpath("ctf") then
 			minetest.chat_send_player(name, "Can't dig beyond the barrier!")
 			return true
 		else
-			return old_is_protected(pos, name)
+			return old_is_protected(pos, name, ...)
 		end
 	end