diff --git a/terraform/install/run-nixos-anywhere.sh b/terraform/install/run-nixos-anywhere.sh
index 34d4d1c..d1ccebb 100755
--- a/terraform/install/run-nixos-anywhere.sh
+++ b/terraform/install/run-nixos-anywhere.sh
@@ -62,7 +62,7 @@ while [[ $# -gt 0 ]]; do
     echo "Script file '$2' is not executable"
     exit 1
   fi
-  mkdir "${tmpdir}/keys"
+  mkdir -p "${tmpdir}/keys"
   "$2" >"${tmpdir}/keys/$keyIdx"
   args+=("--disk-encryption-keys" "$1" "${tmpdir}/keys/$keyIdx")
   shift