1 files changed, 1 insertions, 1 deletions
diff --git a/lib/open-uri.rb b/lib/open-uri.rb
index 56c78f0468..37d22a1572 100644
--- a/lib/open-uri.rb
+++ b/lib/open-uri.rb
@@ -660,7 +660,7 @@ module URI
             proxy_uri = nil
           end
         else # http_proxy is safe to use because ENV is case sensitive.
-          proxy_uri = ENV[name]
+          proxy_uri = ENV.to_hash[name]
         end
         if !proxy_uri
           # Use CGI_HTTP_PROXY.  cf. libwww-perl.