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-rw-r--r--lib/net/http.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/net/http.rb b/lib/net/http.rb
index 9b3ee5960..7cd0acd65 100644
--- a/lib/net/http.rb
+++ b/lib/net/http.rb
@@ -1045,7 +1045,7 @@ module Net # :nodoc:
# p request.get_fields('X-My-Header') #=> ["a", "b", "c"]
#
def add_header(key, val)
- if header.key?(key.downcase)
+ if @header.key?(key.downcase)
@header[key.downcase].concat Array(val)
else
@header[key.downcase] = Array(val).dup