diff --git a/contrib/shell_completion/README.md b/contrib/shell_completion/README.md
index 94e2b757227..4b0b1788b83 100644
--- a/contrib/shell_completion/README.md
+++ b/contrib/shell_completion/README.md
@@ -7,3 +7,5 @@ To use it, copy the contents of the folder into `$ZSH/custom/gaia` and add `gaia
 ```zsh
 plugins=(... gaiad)
 ```
+
+To regenerate the script please run `make gen-completion`