diff --git a/boto/glacier/layer1.py b/boto/glacier/layer1.py
index 2f5093619e..9c2047a00d 100644
--- a/boto/glacier/layer1.py
+++ b/boto/glacier/layer1.py
@@ -75,7 +75,7 @@ def make_request(self, verb, resource, headers=None,
         if params:
             param_list = []
             for key, value in params:
-                params_list.append('%s=%s' % (urllib.quote(key),
+                param_list.append('%s=%s' % (urllib.quote(key),
                                               urllib.quote(value)))
             uri += '?' + '&'.join(param_list)
         response = AWSAuthConnection.make_request(self, verb, uri,