diff --git a/scripts/install-nix-from-closure.sh b/scripts/install-nix-from-closure.sh
index 454cb432f..124819b3e 100644
--- a/scripts/install-nix-from-closure.sh
+++ b/scripts/install-nix-from-closure.sh
@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /usr/bin/env bash
 
 set -e