diff --git a/Makefile b/Makefile
index 93f68b5590..fdd3cc6b80 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@ tmp/%/public:
 	@printf "Missing tmp/$*/public. Run:\n\n\tmake build-$*\n\n"; exit 1
 
 .PHONY: tmp-sites
-tmp-sites: tmp
+tmp-sites: clean tmp
 	cp -R *linkerd.io tmp/
 
 .PHONY: lint
diff --git a/README.md b/README.md
index 0df43dae27..9f741c0870 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Source code for the linkerd.io website.
    ```bash
    docker run \
       --mount type=bind,source="$(pwd)",target=/website --workdir=/website \
-      buoyantio/website-builder:v1.3.3 make lint check
+      buoyantio/website-builder:v1.3.3 sh -c "make lint check"
    ```
 
 1. Install Hugo 0.74.3 to run the site locally: