diff --git a/README.md b/README.md
index dbcea723..8adc2be6 100644
--- a/README.md
+++ b/README.md
@@ -148,7 +148,7 @@ Options are:
 You can easily enable support for source-maps (making stacktraces easier to read) by installing and using the following plugin:
 
 ```sh
-yarn add --dev source-map-support
+yarn add source-map-support
 ```
 
 ```ts