diff --git a/rowers/templates/team_compare_select.html b/rowers/templates/team_compare_select.html
index c6288b93..835e6488 100644
--- a/rowers/templates/team_compare_select.html
+++ b/rowers/templates/team_compare_select.html
@@ -8,7 +8,7 @@
 
 <script>
   function toggle(source) {
-  checkboxes = document.querySelectorAll("input[type='checkbox']");
+  checkboxes = document.querySelectorAll("input[name='workouts']");
   for(var i=0, n=checkboxes.length;i<n;i++) {
        checkboxes[i].checked = source.checked;
   }
diff --git a/rowers/templates/user_boxplot_select.html b/rowers/templates/user_boxplot_select.html
index 984a5efe..2033faf9 100644
--- a/rowers/templates/user_boxplot_select.html
+++ b/rowers/templates/user_boxplot_select.html
@@ -7,7 +7,7 @@
 {% block content %}
 <script>
   function toggle(source) {
-  checkboxes = document.querySelectorAll("input[type='checkbox']");
+  checkboxes = document.querySelectorAll("input[name='workouts']");
   for(var i=0, n=checkboxes.length;i<n;i++) {
        checkboxes[i].checked = source.checked;
   }