diff --git a/src/combine.js b/src/combine.js
index 6287302..d64b59e 100644
--- a/src/combine.js
+++ b/src/combine.js
@@ -60,7 +60,7 @@ module.exports.folder = async (root, options) => {
                         const bvTarget = args.shift();
                         const bvSourceName = trimEnd(args.join(' '), ';');
                         const bvSource = options.vars[bvSourceName];
-                        if(typeof bvSource !== 'objects' || bvSource === null)
+                        if(typeof bvSource !== 'object' || bvSource === null)
                             throw `INVALID VARS SOURCE: ${bvSourceName}`;
 
                         const bvProps = [];