diff --git a/letsencrypt-apache/letsencrypt_apache/tls_sni_01.py b/letsencrypt-apache/letsencrypt_apache/tls_sni_01.py
index 2049eb574..ca7985f35 100644
--- a/letsencrypt-apache/letsencrypt_apache/tls_sni_01.py
+++ b/letsencrypt-apache/letsencrypt_apache/tls_sni_01.py
@@ -1,12 +1,14 @@
 """A class that performs TLS-SNI-01 challenges for Apache"""
 
 import os
+import logging
 
 from letsencrypt.plugins import common
 
 from letsencrypt_apache import obj
 from letsencrypt_apache import parser
 
+logger = logging.getLogger(__name__)
 
 class ApacheTlsSni01(common.TLSSNI01):
     """Class that performs TLS-SNI-01 challenges within the Apache configurator
@@ -104,6 +106,7 @@ class ApacheTlsSni01(common.TLSSNI01):
         self.configurator.reverter.register_file_creation(
             True, self.challenge_conf)
 
+        logger.debug("writing a config file with text: %s", config_text)
         with open(self.challenge_conf, "w") as new_conf:
             new_conf.write(config_text)