diff --git a/src/core/system.js b/src/core/system.js
index 051196e966d..deafe0e3dfa 100644
--- a/src/core/system.js
+++ b/src/core/system.js
@@ -322,7 +322,7 @@ function combinePlugins(plugins, toolbox) {
   if(isArray(plugins)) {
     return plugins
       .map(plugin => combinePlugins(plugin, toolbox))
-      .reduce(systemExtend, { components: { ...toolbox.getComponents() } })
+      .reduce(systemExtend, { components: toolbox.getComponents() })
   }
 
   return {}