diff --git a/src/composer.json b/src/composer.json
index 2d035cee..5d4d7b34 100644
--- a/src/composer.json
+++ b/src/composer.json
@@ -24,6 +24,9 @@
         "symfony/config": "2.4.*",
         "symfony/yaml": "2.4.*"
     },
+    "require-dev": {
+        "squizlabs/php_codesniffer": "1.*"
+    },
     "config": {
         "vendor-dir": "mibew/vendor"
     }