diff --git a/tests/test_ssl.py b/tests/test_ssl.py
index 299ae9b95ddb04cc2e0d2639349dc1dde4c246f4..6856a9d2b545fcbf36497bfa96bf7a430529c817 100755
--- a/tests/test_ssl.py
+++ b/tests/test_ssl.py
@@ -33,5 +33,5 @@ for s in conf_servers:
         requests.get(url)
         sys.exit(0)
     except requests.exceptions.SSLError as e:
-        print('Error: SSL certificate for %s is not valid' % (url, e))
+        print('Error: SSL certificate for %s is not valid: %s' % (url, e))
         sys.exit(1)