diff --git a/EleventyVue.js b/EleventyVue.js
index d76a1aa..6697fdc 100644
--- a/EleventyVue.js
+++ b/EleventyVue.js
@@ -181,6 +181,8 @@ class EleventyVue {
     // Full data cascade is available to the root template component
     if(!vueComponent.mixins) {
       vueComponent.mixins = [];
+    } else {
+      vueComponent.mixins = vueComponent.mixins.filter((item) => !item.data)
     }
     vueComponent.mixins.push({
       data: function() {
@@ -195,4 +197,4 @@ class EleventyVue {
   }
 }
 
-module.exports = EleventyVue;
\ No newline at end of file
+module.exports = EleventyVue;