diff --git a/zephyr/static/js/util.js b/zephyr/static/js/util.js
index 8f59321605..f9bdbc3527 100644
--- a/zephyr/static/js/util.js
+++ b/zephyr/static/js/util.js
@@ -43,6 +43,14 @@ exports.make_loading_indicator = function (container, text) {
         shadow: false
     }).spin(spinner_elem[0]);
     container.data("spinner_obj", spinner);
+
+    // Make the spinner appear in the center of its enclosing
+    // element.  spinner.el is a 0x0 div.  The parts of the spinner
+    // are arranged so that they're centered on the upper-left corner
+    // of spinner.el.  So, by setting spinner.el's position to
+    // relative and top/left to 50%, the center of the spinner will
+    // be located at the center of spinner_elem.
+    $(spinner.el).css({left: '50%', top: '50%'});
 };
 
 exports.destroy_loading_indicator = function (container) {