diff --git a/README.md b/README.md
index 37f1aa0f3..7f34c3340 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,7 @@ As more providers start supporting Llama 4, you can use them in Llama Stack as w
 To try Llama Stack locally, run:
 
 ```bash
-curl -LsSf https://github.com/meta-llama/llama-stack/raw/main/install.sh | sh
+curl -LsSf https://github.com/meta-llama/llama-stack/raw/main/install.sh | bash
 ```
 
 ### Overview
diff --git a/install.sh b/install.sh
index e424925a6..dae43df38 100755
--- a/install.sh
+++ b/install.sh
@@ -5,6 +5,11 @@
 # This source code is licensed under the terms described in the LICENSE file in
 # the root directory of this source tree.
 
+[ -z "$BASH_VERSION" ] && {
+  echo "This script must be run with bash" >&2
+  exit 1
+}
+
 set -Eeuo pipefail
 
 PORT=8321