diff --git a/composer.json b/composer.json
index 86bfc21..ae9d2bd 100755
--- a/composer.json
+++ b/composer.json
@@ -12,6 +12,8 @@
         "ext-intl": "Intl extension is needed for humanReadable()"
     },
     "autoload": {
-        "classmap": ["src/"]
+        "psr-4": {
+            "RRule\\": "src/"
+        }
     }
 }
\ No newline at end of file