diff --git a/lib/index.js b/lib/index.js
index 72cf668..2e735ba 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -110,7 +110,7 @@ function createAndWrapKeyVaultClient(options) {
   if (!options) {
     throw new Error('No options provided for the key vault resolver.');
   }
-  let client = typeof(options) === 'function' && options.getSecret ? options : options.client;
+  let client = options && options.getSecret && typeof(options.getSecret) === 'function' ? options : options.client;
   if (options.credentials && !client) {
     client = new azureKeyVault.KeyVaultClient(options.credentials);
   }
diff --git a/package.json b/package.json
index c2e5ae2..d9b72c5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ospo/keyvault-configuration-resolver",
-  "version": "0.9.2",
+  "version": "0.9.3",
   "description": "Resolves custom keyvault:// URI values within an object graph using Azure KeyVault",
   "main": "lib/index.js",
   "engines": {