diff --git a/tools/lint/main_ni.c b/tools/lint/main_ni.c
index 3b6c71a..b7d821f 100644
--- a/tools/lint/main_ni.c
+++ b/tools/lint/main_ni.c
@@ -384,7 +384,7 @@
 /**
  * @brief Enable specific debugging messages.
  *
- * @param[in] groups String in the form <group>[,group>]*.
+ * @param[in] groups String in the form "<group>[,group>]*".
  * @param[in,out] yo Options for yanglint.
  * return 0 on success.
  */