diff --git a/README.md b/README.md
index 4a8e95a..924e79d 100644
--- a/README.md
+++ b/README.md
@@ -35,3 +35,7 @@ You will now have the following key combinations at your disposal:
  <kbd>C-c C-c C-c</kbd> | cargo-process-repeat
  <kbd>C-c C-c C-f</kbd> | cargo-process-current-test
  <kbd>C-c C-c C-o</kbd> | cargo-process-current-file-tests
+
+Before executing the task, Emacs will prompt you to save any modified buffers
+associated with the current Cargo project. Setting `compilation-ask-about-save`
+to `nil` make Emacs save modified buffers without asking.