diff --git a/src/OpenixCard/OpenixCard.cpp b/src/OpenixCard/OpenixCard.cpp
index 9107c70..a5af369 100644
--- a/src/OpenixCard/OpenixCard.cpp
+++ b/src/OpenixCard/OpenixCard.cpp
@@ -72,7 +72,7 @@ void OpenixCard::parse_args(int argc, char **argv) {
             .default_value(false)
             .implicit_value(true);
     parser.add_argument("-i", "--input")
-            .help("Input Allwinner image file")
+            .help("Input Allwinner image file or dumped image directory")
             .required();
 
     try {