diff --git a/README.md b/README.md
index 49aac3a9f..cffc493ad 100644
--- a/README.md
+++ b/README.md
@@ -508,7 +508,7 @@ provide a kaniko cache warming image at `gcr.io/kaniko-project/warmer`:
 ```shell
 docker run -v $(pwd):/workspace gcr.io/kaniko-project/warmer:latest --cache-dir=/workspace/cache --image=<image to cache> --image=<another image to cache>
 docker run -v $(pwd):/workspace gcr.io/kaniko-project/warmer:latest --cache-dir=/workspace/cache --dockerfile=<path to dockerfile>
-docker run -v $(pwd):/workspace gcr.io/kaniko-project/warmer:latest --cache-dir=/workspace/cache --dockerfile=<path to dockerfile> --build-args version=1.19
+docker run -v $(pwd):/workspace gcr.io/kaniko-project/warmer:latest --cache-dir=/workspace/cache --dockerfile=<path to dockerfile> --build-arg version=1.19
 ```
 
 `--image` can be specified for any number of desired images. `--dockerfile` can