diff --git a/twitfix.py b/twitfix.py
index 101be2f..a51a868 100644
--- a/twitfix.py
+++ b/twitfix.py
@@ -843,5 +843,8 @@ def oEmbedGen(description, user, video_link, ttype):
 
 
 if __name__ == "__main__":
-    app.config["SERVER_NAME"] = "localhost:80"
-    app.run(host="0.0.0.0")
+    port = "80"
+    if "PORT" in os.environ:
+      port = os.environ["PORT"]
+    app.config["SERVER_NAME"] = "localhost:" + port
+    app.run(host="0.0.0.0", port=port)