diff --git a/vault-github/run.sh b/vault-github/run.sh
index 4385ecf..7ba1f29 100644
--- a/vault-github/run.sh
+++ b/vault-github/run.sh
@@ -84,12 +84,12 @@ install() {
 }
 
 TMP=$(mktemp -d)
-pushd "${TMP}" > /dev/null
+pushd "$${TMP}" > /dev/null
 if ! install; then
   printf "Installation failed\n"
 fi
 popd > /dev/null
-rm -rf "${TMP}"
+rm -rf "$${TMP}"
 
 # Authenticate with Vault
 printf "🔑 Authenticating with Vault ...\n\n"
diff --git a/vault-token/run.sh b/vault-token/run.sh
index 4d0da44..3dbcca0 100644
--- a/vault-token/run.sh
+++ b/vault-token/run.sh
@@ -82,9 +82,9 @@ install() {
 }
 
 TMP=$(mktemp -d)
-pushd "${TMP}" > /dev/null
+pushd "$${TMP}" > /dev/null
 if ! install; then
   printf "Installation failed\n"
 fi
 popd > /dev/null
-rm -rf "${TMP}"
+rm -rf "$${TMP}"