diff --git a/src/components/ha-label-badge.html b/src/components/ha-label-badge.html
index 52a2f569c7..5de816787a 100644
--- a/src/components/ha-label-badge.html
+++ b/src/components/ha-label-badge.html
@@ -130,7 +130,7 @@ Polymer({
   },
 
   imageChanged: function (newVal) {
-    this.$.badge.style.backgroundImage = newVal ? `url(${newVal})` : '';
+    this.$.badge.style.backgroundImage = newVal ? 'url(' + newVal + ')' : '';
   },
 });
 </script>
\ No newline at end of file
diff --git a/src/components/ha-view-tabs.html b/src/components/ha-view-tabs.html
index bacd01a6d4..47fb81ce36 100644
--- a/src/components/ha-view-tabs.html
+++ b/src/components/ha-view-tabs.html
@@ -68,15 +68,17 @@ Polymer({
     },
   },
 
-  viewTapped() {
+  viewTapped: function () {
     this.fire('view-tapped');
   },
 
-  viewSelected(ev) {
+  viewSelected: function (ev) {
     var view = ev.detail.item.getAttribute('data-entity') || null;
     var current = this.currentView || null;
     if (view !== current) {
-      this.async(function () { this.hass.viewActions.selectView(view); }.bind(this), 0);
+      this.async(function () {
+        this.hass.viewActions.selectView(view);
+      }.bind(this), 0);
     }
   },
 });
diff --git a/src/home-assistant.html b/src/home-assistant.html
index 4c40dd1f44..3df52b5d94 100644
--- a/src/home-assistant.html
+++ b/src/home-assistant.html
@@ -81,7 +81,7 @@ Polymer({
       this.iconsLoaded = true;
     }.bind(this);
 
-    this.importHref(`/static/mdi-${this.icons}.html`,
+    this.importHref('/static/mdi-' + this.icons + '.html',
                     success,
                     function () {
                       this.importHref('/static/mdi.html', success, success);
diff --git a/src/more-infos/more-info-camera.html b/src/more-infos/more-info-camera.html
index 9f4c39b9c4..4f4dc88d7e 100644
--- a/src/more-infos/more-info-camera.html
+++ b/src/more-infos/more-info-camera.html
@@ -39,8 +39,8 @@ Polymer({
     if (hass.demo) {
       return '/demo/webcam.jpg';
     } else if (stateObj) {
-      return `/api/camera_proxy_stream/${stateObj.entityId}` +
-             `?token=${stateObj.attributes.access_token}`;
+      return '/api/camera_proxy_stream/' + stateObj.entityId +
+             '?token=' + stateObj.attributes.access_token;
     }
     // Return an empty image if no stateObj (= dialog not open)
     return 'data:image/gif;base64,R0lGODlhAQABAAAAACw=';
diff --git a/src/state-summary/state-card-input_select.html b/src/state-summary/state-card-input_select.html
index 638e87e551..11ba9cbb9d 100644
--- a/src/state-summary/state-card-input_select.html
+++ b/src/state-summary/state-card-input_select.html
@@ -69,7 +69,7 @@ Polymer({
       return;
     }
     this.hass.serviceActions.callService('input_select', 'select_option', {
-      option,
+      option: option,
       entity_id: this.stateObj.entityId,
     });
   },
diff --git a/src/util/hass-behavior.html b/src/util/hass-behavior.html
index 86f09ee48d..8931a17d85 100644
--- a/src/util/hass-behavior.html
+++ b/src/util/hass-behavior.html
@@ -16,7 +16,7 @@ window.hassBehavior = {
         var getter = this.properties[key].bindNuclear(hass);
 
         if (!getter) {
-          throw new Error(`Undefined getter specified for key ${key}`);
+          throw new Error('Undefined getter specified for key ' + key);
         }
 
         this[key] = hass.reactor.evaluate(getter);