diff --git a/lib/pure/httpclient.nim b/lib/pure/httpclient.nim
index 1a0d8c5e19..be06a7b8e8 100644
--- a/lib/pure/httpclient.nim
+++ b/lib/pure/httpclient.nim
@@ -75,7 +75,7 @@
 ## constructor should be used for this purpose. However,
 ## currently only basic authentication is supported.
 
-import sockets, strutils, parseurl, parseutils, strtabs, base64
+import sockets, strutils, parseurl, parseutils, strtabs, base64, os
 import asyncnet, asyncdispatch
 import rawsockets