diff --git a/vendor/ember-component-attributes/index.js b/vendor/ember-component-attributes/index.js
index <HASH>..<HASH> 100644
--- a/vendor/ember-component-attributes/index.js
+++ b/vendor/ember-component-attributes/index.js
@@ -13,9 +13,11 @@
           customBindings.push(`__HTML_ATTRIBUTES__.${attribute}:${attribute}`);
         }
 
-        debugger
-
-        this.attributeBindings = this.attributeBindings.concat(customBindings);
+        if (this.attributeBindings) {
+          this.attributeBindings = this.attributeBindings.concat(customBindings);
+        } else {
+          this.attributeBindings = customBindings;
+        }
 
         return value;
       }
Make work with and without pre-existing attributeBindings.

When a component has no attribute bindings, `this.attributeBindings` is undefined.

This updates the computed setter to handle that scenario.