diff --git a/lib/mixins/dir-mixin.js b/lib/mixins/dir-mixin.js
index 6b458e11a8..2bf8bb155b 100644
--- a/lib/mixins/dir-mixin.js
+++ b/lib/mixins/dir-mixin.js
@@ -109,7 +109,9 @@ export const DirMixin = dedupingMixin((base) => {
   class Dir extends elementBase {
 
     /**
-     * @override
+     * @param {string} cssText .
+     * @param {string} baseURI .
+     * @return {string} .
      * @suppress {missingProperties} Interfaces in closure do not inherit statics, but classes do
      */
     static _processStyleText(cssText, baseURI) {
diff --git a/lib/mixins/disable-upgrade-mixin.js b/lib/mixins/disable-upgrade-mixin.js
index 5c16a30718..cfcd148430 100644
--- a/lib/mixins/disable-upgrade-mixin.js
+++ b/lib/mixins/disable-upgrade-mixin.js
@@ -56,7 +56,6 @@ export const DisableUpgradeMixin = dedupingMixin((base) => {
   class DisableUpgradeClass extends superClass {
 
     /**
-     * @override
      * @suppress {missingProperties} go/missingfnprops
      */
     static get observedAttributes() {
diff --git a/lib/mixins/element-mixin.js b/lib/mixins/element-mixin.js
index 5a9703986f..84c590686a 100644
--- a/lib/mixins/element-mixin.js
+++ b/lib/mixins/element-mixin.js
@@ -325,7 +325,6 @@ export const ElementMixin = dedupingMixin(base => {
      * find the template.
      * @return {void}
      * @protected
-     * @override
      * @suppress {missingProperties} Interfaces in closure do not inherit statics, but classes do
      */
    static _finalizeClass() {
@@ -355,9 +354,9 @@ export const ElementMixin = dedupingMixin(base => {
     /**
      * Override of PropertiesChanged createProperties to create accessors
      * and property effects for all of the properties.
+     * @param {!Object} props .
      * @return {void}
      * @protected
-     * @override
      */
      static createProperties(props) {
       for (let p in props) {
@@ -724,7 +723,10 @@ export const ElementMixin = dedupingMixin(base => {
      * code. This map determines which method templates should have accessors
      * created for them.
      *
-     * @override
+     * @param {!HTMLTemplateElement} template Template
+     * @param {!TemplateInfo} templateInfo Template metadata for current template
+     * @param {!NodeInfo} nodeInfo Node metadata for current template.
+     * @return {boolean} .
      * @suppress {missingProperties} Interfaces in closure do not inherit statics, but classes do
      */
     static _parseTemplateContent(template, templateInfo, nodeInfo) {
diff --git a/lib/mixins/property-effects.js b/lib/mixins/property-effects.js
index f44a3de365..4961eec486 100644
--- a/lib/mixins/property-effects.js
+++ b/lib/mixins/property-effects.js
@@ -2484,7 +2484,6 @@ export const PropertyEffects = dedupingMixin(superClass => {
      * with one or more metadata objects capturing the source(s) of the
      * binding.
      *
-     * @override
      * @param {Node} node Node to parse
      * @param {TemplateInfo} templateInfo Template metadata for current template
      * @param {NodeInfo} nodeInfo Node metadata for current template node
@@ -2517,7 +2516,6 @@ export const PropertyEffects = dedupingMixin(superClass => {
      * with one or more metadata objects capturing the source(s) of the
      * binding.
      *
-     * @override
      * @param {Element} node Node to parse
      * @param {TemplateInfo} templateInfo Template metadata for current template
      * @param {NodeInfo} nodeInfo Node metadata for current template node
@@ -2581,7 +2579,6 @@ export const PropertyEffects = dedupingMixin(superClass => {
      * binding the properties that a nested template depends on to the template
      * as `_host_<property>`.
      *
-     * @override
      * @param {Node} node Node to parse
      * @param {TemplateInfo} templateInfo Template metadata for current template
      * @param {NodeInfo} nodeInfo Node metadata for current template node