diff --git a/packages/coding-agent/docs/termux.md b/packages/coding-agent/docs/termux.md
index 2e7a87a0..cb16a283 100644
--- a/packages/coding-agent/docs/termux.md
+++ b/packages/coding-agent/docs/termux.md
@@ -53,7 +53,7 @@ termux-open-url "https://example.com"
 ## Opening Files
 ```bash
 termux-open file.pdf          # Opens with default app
-termux-open -c image.jpg      # Choose app
+termux-open --chooser image.jpg      # Choose app
 ```
 
 ## Clipboard