diff --git a/stream.py b/stream.py
index b971f60..0cf9f29 100755
--- a/stream.py
+++ b/stream.py
@@ -29,7 +29,7 @@ class ProxyElem():
     def stream(self):
         session = streamlink.Streamlink()
         session.set_option("http-timeout", 2.0)
-        is self.proxy is not None:
+        if self.proxy is not None:
             session.set_option("https-proxy", "socks5://" + self.proxy)
             session.set_option("http-proxy", "socks5://" + self.proxy)
         return session