diff --git a/README.md b/README.md
index e2394a10..56953eff 100644
--- a/README.md
+++ b/README.md
@@ -176,7 +176,7 @@ The JSON output can be compact (default) or pretty formatted with the `-p` optio
 
 ### Options
 - `-a` about `jc`. Prints information about `jc` and the parsers (in JSON, of course!)
-- `-d` debug mode. Prints trace messages if parsing issues encountered
+- `-d` debug mode. Prints trace messages if parsing issues encountered (use `-dd` for verbose debugging)
 - `-m` monochrome JSON output
 - `-p` pretty format the JSON output
 - `-q` quiet mode. Suppresses warning messages