diff --git a/examples/logging.example.conf b/examples/logging.example.conf
index 5ce728d5..ee1f54d4 100644
--- a/examples/logging.example.conf
+++ b/examples/logging.example.conf
@@ -21,7 +21,7 @@
 #
 #  To log a message:
 #
-#  logger.debug("You ought to know that %s" % details)
+#  logger.debug("You ought to know that %s", details)
 #
 #  Note that a logging call will be governed by the most restrictive level
 #  set by the setLevel call, the [logger_myapp] section, and the [handler_...]