diff --git a/gunicorn/http/wsgi.py b/gunicorn/http/wsgi.py
index 6ca3b4fb7..c0569834b 100644
--- a/gunicorn/http/wsgi.py
+++ b/gunicorn/http/wsgi.py
@@ -353,7 +353,9 @@ def sendfile(self, respiter):
         if self.cfg.is_ssl or not self.can_sendfile():
             return False
 
-        if not util.has_fileno(respiter.filelike):
+        if util.has_fileno(respiter.filelike):
+            fileno = respiter.filelike.fileno()
+        else:
             return False
 
         try: