diff --git a/conf/nginx.conf b/conf/nginx.conf
index 1d06c71..c7ddbcc 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -23,7 +23,7 @@ http {
 
         # redirect requests ending in a forward slash
         location ~ ^/(.+)/$ {
-            return 302 /$1;
+            return 301 /$1;
         }
 
         location /css {
diff --git a/spec/routes_spec.moon b/spec/routes_spec.moon
index 58aa1e1..9c9e21f 100644
--- a/spec/routes_spec.moon
+++ b/spec/routes_spec.moon
@@ -48,3 +48,17 @@ describe "http://miti.sh/index.html", ->
     assert.same request\statusCode!, 200
     assert.same request\statusMessage!, "OK"
     assert.same request\body!\match("<title>(.*)</title>"), index_title
+
+describe "http://miti.sh/posts/", ->
+  it "permanently redirects to http://miti.sh/posts", ->
+    request = req "http://miti.sh/posts/"
+    assert.same request\statusCode!, 301
+    assert.same request\statusMessage!, "Moved Permanently"
+    assert.same request\header!.Location, "http://miti.sh/posts"
+
+describe "http://miti.sh/posts", ->
+  it "sends /posts/index.html", ->
+    request = req "http://miti.sh/posts"
+    assert.same request\statusCode!, 200
+    assert.same request\statusMessage!, "OK"
+    assert.same request\body!\match("<title>(.*)</title>"), "miti.sh · Posts"