diff --git a/src/components/FormlyForm.js b/src/components/FormlyForm.js
index e7b3d63..49b1ecf 100644
--- a/src/components/FormlyForm.js
+++ b/src/components/FormlyForm.js
@@ -5,7 +5,7 @@ export default {
       const self = this;
       children = this.fields.map( function(field){
 	return h('formly-field', {
-	  key: `formly_{field.key}`,
+	  key: `formly_${field.key}`,
 	  ref: field.key,
 	  props: {
 	    model: self.model,
diff --git a/test/unit/specs/FormlyForm.spec.js b/test/unit/specs/FormlyForm.spec.js
index 7eddaad..a8f8952 100644
--- a/test/unit/specs/FormlyForm.spec.js
+++ b/test/unit/specs/FormlyForm.spec.js
@@ -64,7 +64,7 @@ describe('FormlyForm', () => {
       ]
     };
 
-    createForm('<formly-form :form="form" :model="model" :fields="fields"></formly-form>', data);
+    createForm('<formly-form ref="form" :form="form" :model="model" :fields="fields"></formly-form>', data);
 
     //check the elements have been created
 
@@ -72,7 +72,8 @@ describe('FormlyForm', () => {
     expect(vm.$el.querySelectorAll('.formly-field')).to.be.length(2);
 
     //check their data
-    
+    expect(vm.$refs.form.$refs.fname.$vnode.key).to.equal('formly_fname');
+    expect(vm.$refs.form.$refs.lname.$vnode.key).to.equal('formly_lname')
     expect(vm.$el.querySelector('#lname_model').textContent).to.contain('smith');
     expect(JSON.parse(vm.$el.querySelector('#fname_field').textContent)).to.deep.equal(data.fields[0]);
     expect(JSON.parse(vm.$el.querySelector('#lname_field').textContent)).to.deep.equal(data.fields[1]);