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	diff --git a/lib/tesla/middleware/path_params.ex b/lib/tesla/middleware/path_params.ex
	new file mode 100644
	index 0000000..d4ae223
	--- /dev/null
	+++ b/lib/tesla/middleware/path_params.ex
	@@ -0,0 +1,14 @@
	+defmodule Tesla.Middleware.PathParams do
	+ @behaviour Tesla.Middleware
	+
	+ @impl true
	+ def call(env, next, _) do
	+ url = build_url(env.url, env.opts[:path_params])
	+ Tesla.run(%{env \| url: url}, next)
	+ end
	+
	+ defp build_url(url, nil), do: url
	+
	+ defp build_url(url, params),
	+ do: Enum.reduce(params, url, fn {k, v}, u -> String.replace(u, ":#{k}", to_string(v)) end)
	+end
	diff --git a/test/tesla/middleware/path_params_test.exs b/test/tesla/middleware/path_params_test.exs
	new file mode 100644
	index 0000000..ae4ac31
	--- /dev/null
	+++ b/test/tesla/middleware/path_params_test.exs
	@@ -0,0 +1,17 @@
	+defmodule Tesla.Middleware.PathParamsTest do
	+ use ExUnit.Case, async: true
	+ alias Tesla.Env
	+
	+ @middleware Tesla.Middleware.PathParams
	+
	+ test "no params" do
	+ assert {:ok, env} = @middleware.call(%Env{url: "/users/:id"}, [], nil)
	+ assert env.url == "/users/:id"
	+ end
	+
	+ test "passed params" do
	+ opts = [path_params: [id: 42]]
	+ assert {:ok, env} = @middleware.call(%Env{url: "/users/:id", opts: opts}, [], nil)
	+ assert env.url == "/users/42"
	+ end
	+end