diff --git a/radius.py b/radius.py
index 6f6fbf0..be34a1f 100755
--- a/radius.py
+++ b/radius.py
@@ -546,7 +546,7 @@ def attempt(res):
             'Sending (as hex): %s',
             ':'.join(format(ord(c), '02x') for c in send))
 
-        for i in range(self.retries):
+        for i in range(1, self.retries + 1):
             for res in addrs:
                 try:
                     return attempt(res)