diff --git a/src/index.js b/src/index.js
index b245c2d..74c1698 100644
--- a/src/index.js
+++ b/src/index.js
@@ -33,9 +33,6 @@ module.exports.process = async (env, tasks) => {
     const files = {};
 
     for(const type of order) {
-        if(!types.hasOwnProperty(type))
-            continue;
-
         if(!(type in types))
             throw `${type} is not a supported build task type`;
 
@@ -54,8 +51,9 @@ module.exports.process = async (env, tasks) => {
             console.info(` => ${task.source}...`);
             const path = await handler.process(task, vars);
 
-            if(typeof task.varsName === 'string')
-                vars[task.varsGroup ?? ''][task.varsName] = path;
+            if(typeof task.vars === 'object' && task.vars !== null)
+                for(const varsGroup in task.vars)
+                    vars[varsGroup][task.vars[varsGroup] === ':source' ? task.source : task.vars[varsGroup]] = path;
 
             files[task.source] = path;
         }