diff --git a/mods/ctf_map/schem_map.lua b/mods/ctf_map/schem_map.lua
index bcc0c46..9faadd2 100644
--- a/mods/ctf_map/schem_map.lua
+++ b/mods/ctf_map/schem_map.lua
@@ -58,7 +58,8 @@ local function search_for_maps()
 				if extension == "mts" then
 					files_hash[dir .. "/" .. filename] = true
 				else
-					if extension ~= "conf" and extension ~= "md" then
+					if extension ~= "conf" and extension ~= "md"
+							and files[i] ~= ".git" then
 						error("Map extension is not '.mts': " .. files[i])
 					end
 				end