diff --git a/flask_cors/extension.py b/flask_cors/extension.py
index 6f76995..6361dcc 100644
--- a/flask_cors/extension.py
+++ b/flask_cors/extension.py
@@ -193,7 +193,7 @@ def cors_after_request(resp):
         normalized_path = unquote_plus(request.path)
         for res_regex, res_options in resources:
             if try_match(normalized_path, res_regex):
-                LOG.debug("Request to '%s' matches CORS resource '%s'. Using options: %s",
+                LOG.debug("Request to '%r' matches CORS resource '%s'. Using options: %s",
                       request.path, get_regexp_pattern(res_regex), res_options)
                 set_cors_headers(resp, res_options)
                 break