diff --git a/composer.json b/composer.json
index f8b40f8..c4a33b9 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,10 @@
         "phpunit/phpunit": "^4.8.35"
     },
     "autoload": {
-        "psr-0": {"Parsedown": ""}
+        "psr-0": {"Parsedown": ""},
+        "files": [
+            "Parsedown.php"
+        ]
     },
     "autoload-dev": {
         "psr-0": {
@@ -28,6 +31,6 @@
             "ParsedownTest": "test/",
             "CommonMarkTest": "test/",
             "CommonMarkTestWeak": "test/"
-        }
+        },
     }
 }