diff --git a/lib/httparty/net_digest_auth.rb b/lib/httparty/net_digest_auth.rb
index 6e262d03..b4a64acc 100644
--- a/lib/httparty/net_digest_auth.rb
+++ b/lib/httparty/net_digest_auth.rb
@@ -32,7 +32,7 @@ def authorization_header
           fields = [
             %Q(cnonce="#{@cnonce}"),
             %Q(qop="#{@response['qop']}"),
-            %Q(nc="00000001")
+            %Q(nc=00000001)
           ]
           fields.each { |field| header << field }
         end
diff --git a/spec/httparty/net_digest_auth_spec.rb b/spec/httparty/net_digest_auth_spec.rb
index 8b7a4d91..6b6605a2 100644
--- a/spec/httparty/net_digest_auth_spec.rb
+++ b/spec/httparty/net_digest_auth_spec.rb
@@ -66,7 +66,7 @@ def authorization_header
     end
 
     it "should set nonce-count" do
-      authorization_header.should include(%Q(nc="00000001"))
+      authorization_header.should include(%Q(nc=00000001))
     end
 
     it "should set response" do