diff --git a/src/package.json b/src/package.json
index 4b0ae82b4..4a472be07 100644
--- a/src/package.json
+++ b/src/package.json
@@ -40,7 +40,8 @@
                       "swagger-node-express"    : ">=2.1.0",
                       "channels"                : "0.0.x",
                       "jsonminify"              : "0.2.2",
-                      "measured"                : "0.1.3"
+                      "measured"                : "0.1.3",
+                      "mocha"                   : "*"
                      },
   "bin":             { "etherpad-lite": "./node/server.js" },
   "devDependencies": {