diff --git a/config.template.yaml b/config.template.yaml
index e9854ae7..e5784c12 100644
--- a/config.template.yaml
+++ b/config.template.yaml
@@ -35,6 +35,7 @@ https:
   keyfile: 'localhost.key'
   passphrase: ''
   certfile: 'localhost.cert'
+  cafile: ''
 
 # Page template values
 # title goes in the upper left corner, description goes in a <meta> tag
diff --git a/lib/config.js b/lib/config.js
index eb740525..11cba7e3 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -37,7 +37,8 @@ var defaults = {
         domain: "https://localhost",
         keyfile: "localhost.key",
         passphrase: "",
-        certfile: "localhost.cert"
+        certfile: "localhost.cert",
+        cafile: ""
     },
     io: {
         domain: "http://localhost",
diff --git a/lib/server.js b/lib/server.js
index a2db6f97..14175812 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -78,10 +78,17 @@ var Server = function () {
                                                Config.get("https.keyfile")));
         var cert = fs.readFileSync(path.resolve(__dirname, "..",
                                                 Config.get("https.certfile")));
+        var ca = undefined;
+        if (Config.get("https.cafile")) {
+            ca = fs.readFileSync(path.resolve(__dirname, "",
+                                              Config.get("https.cafile")));
+        }
+
         var opts = {
             key: key,
             cert: cert,
-            passphrase: Config.get("https.passphrase")
+            passphrase: Config.get("https.passphrase"),
+            ca: ca
         };
 
         self.https = https.createServer(opts, self.express)