diff --git a/easypost/__init__.py b/easypost/__init__.py
index 74263d5e..7d37f366 100644
--- a/easypost/__init__.py
+++ b/easypost/__init__.py
@@ -628,12 +628,10 @@ def create(cls, api_key=None, verify=None, verify_strict=None, **params):
         if verify or verify_strict:
             verify = verify or []
             verify_strict = verify_strict or []
-            url += "?"
-
-            for param in verify:
-                url += "verify[]={0}".format(param)
-            for param in verify_strict:
-                url += "verify_strict[]={0}".format(param)
+            url += '?' + '&'.join(
+                ['verify[]={0}'.format(opt) for opt in verify] +
+                ['verify_strict[]={0}'.format(opt) for opt in verify_strict]
+            )
 
         wrapped_params = {cls.class_name(): params}
         response, api_key = requestor.request('post', url, wrapped_params)