diff --git a/stream.py b/stream.py
index a7922aa..5314315 100755
--- a/stream.py
+++ b/stream.py
@@ -213,11 +213,11 @@ class MainHandler(tornado.web.RequestHandler):
             if isinstance(width_str, str) and isinstance(height_str, str):
                 pass
             elif isinstance(width_str, str):
-                width = (width // 16) * 16
-                height = (width * 9) / 16
+                width = int((width // 16) * 16)
+                height = int((width * 9) // 16)
             elif isinstance(height_str, str):
-                height = (height // 9) * 9
-                width = (height * 16) / 9
+                height = int((height // 9) * 9)
+                width = int((height * 16) // 9)
 
         origin = self.request.path
         if stream_server is not None: