diff --git a/ChangeLog b/ChangeLog
index 84f6f5d70e..efc5c70c83 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Fri Jul 13 16:10:00 2007  Tanaka Akira  <akr@fsij.org>
+
+	* lib/open-uri.rb (URI::Generic#find_proxy): use ENV.to_hash to access
+	  http_proxy environment variable to avoid case insensitive
+	  environment search.
+
 Fri Jul 13 15:02:15 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* win32/win32.c (CreateChild): enclose command line except for
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.