diff --git a/lib/raop_handlers.h b/lib/raop_handlers.h
index a6a86bb..535d103 100644
--- a/lib/raop_handlers.h
+++ b/lib/raop_handlers.h
@@ -203,8 +203,8 @@ raop_handler_pairsetup_pin(raop_conn_t *conn,
                            http_request_t *request, http_response_t *response,
                            char **response_data, int *response_datalen) {
 
-    const char *request_data;
-    int request_datalen;
+    const char *request_data = NULL;;
+    int request_datalen = 0;
     bool data_is_plist = false;
     bool logger_debug = (logger_get_level(conn->raop->logger) >= LOGGER_DEBUG);
     request_data = http_request_get_data(request, &request_datalen);
@@ -217,7 +217,8 @@ raop_handler_pairsetup_pin(raop_conn_t *conn,
         free(header_str);
     }
     if (!data_is_plist) {
-        logger_log(conn->raop->logger, LOGGER_INFO, "did not receive expected plist from client, request_datalen = %d");
+        logger_log(conn->raop->logger, LOGGER_INFO, "did not receive expected plist from client, request_datalen = %d",
+                  request_datalen);
         goto authentication_failed;
     }