diff --git a/core/AbstractFacetWidget.js b/core/AbstractFacetWidget.js
index 1405635f..9e5ca337 100644
--- a/core/AbstractFacetWidget.js
+++ b/core/AbstractFacetWidget.js
@@ -25,6 +25,7 @@ AjaxSolr.AbstractFacetWidget = AjaxSolr.AbstractWidget.extend(
    *   single "fq" parameter for this widget. Defaults to <tt>true</tt>.
    */
   constructor: function (attributes) {
+    AjaxSolr.AbstractFacetWidget.__super__.constructor.apply(this, arguments);
     AjaxSolr.extend(this, {
       start: 0,
       field: null,
diff --git a/core/AbstractSpellcheckWidget.js b/core/AbstractSpellcheckWidget.js
index f4f24ce1..76571c43 100644
--- a/core/AbstractSpellcheckWidget.js
+++ b/core/AbstractSpellcheckWidget.js
@@ -19,6 +19,7 @@ AjaxSolr.AbstractSpellcheckWidget = AjaxSolr.AbstractWidget.extend(
   /** @lends AjaxSolr.AbstractSpellcheckWidget.prototype */
   {
   constructor: function (attributes) {
+    AjaxSolr.AbstractSpellcheckWidget.__super__.constructor.apply(this, arguments);
     AjaxSolr.extend(this, {
       // The suggestions.
       suggestions: {}
diff --git a/core/AbstractTextWidget.js b/core/AbstractTextWidget.js
index d480f696..1be3da8a 100644
--- a/core/AbstractTextWidget.js
+++ b/core/AbstractTextWidget.js
@@ -22,6 +22,7 @@ AjaxSolr.AbstractTextWidget = AjaxSolr.AbstractWidget.extend(
    *   offset parameter to 0 on each request.
    */
   constructor: function (attributes) {
+    AjaxSolr.AbstractTextWidget.__super__.constructor.apply(this, arguments);
     AjaxSolr.extend(this, {
       start: 0
     }, attributes);
diff --git a/core/ParameterHashStore.js b/core/ParameterHashStore.js
index e6424868..54a28069 100644
--- a/core/ParameterHashStore.js
+++ b/core/ParameterHashStore.js
@@ -31,6 +31,7 @@ AjaxSolr.ParameterHashStore = AjaxSolr.ParameterStore.extend(
    *   up a race condition. Defaults to 250.
    */
   constructor: function (attributes) {
+    AjaxSolr.ParameterHashStore.__super__.constructor.apply(this, arguments);
     AjaxSolr.extend(this, {
       interval: 250,
       // Reference to the setInterval() function.
diff --git a/widgets/ParameterYUIStore.js b/widgets/ParameterYUIStore.js
index dc98663d..9031cd59 100644
--- a/widgets/ParameterYUIStore.js
+++ b/widgets/ParameterYUIStore.js
@@ -36,6 +36,7 @@ AjaxSolr.ParameterYUIStore = AjaxSolr.ParameterStore.extend(
    * 
    */
   constructor: function (attributes) {
+    AjaxSolr.ParameterYUIStore.__super__.constructor.apply(this, arguments);
     AjaxSolr.extend(this, {
       module: 'q',
       // Whether the YUI History Manager is initialized.
diff --git a/widgets/jquery/AutocompleteTermWidget.js b/widgets/jquery/AutocompleteTermWidget.js
index 2eab38a4..9cc0f7a6 100644
--- a/widgets/jquery/AutocompleteTermWidget.js
+++ b/widgets/jquery/AutocompleteTermWidget.js
@@ -51,6 +51,7 @@ AjaxSolr.AutocompleteTermWidget = AjaxSolr.AbstractTextWidget.extend(
    *   differentiate these requests in server logs and Solr statistics.
    */
   constructor: function (attributes) {
+    AjaxSolr.AutocompleteTermWidget.__super__.constructor.apply(this, arguments);
     AjaxSolr.extend(this, {
       field: null,
       tokenized: true,
diff --git a/widgets/jquery/PagerWidget.js b/widgets/jquery/PagerWidget.js
index 74114a72..0b44360e 100644
--- a/widgets/jquery/PagerWidget.js
+++ b/widgets/jquery/PagerWidget.js
@@ -37,6 +37,7 @@ AjaxSolr.PagerWidget = AjaxSolr.AbstractWidget.extend(
    *   Defaults to " ".
    */
   constructor: function (attributes) {
+    AjaxSolr.PagerWidget.__super__.constructor.apply(this, arguments);
     AjaxSolr.extend(this, {
       innerWindow: 4,
       outerWindow: 1,