diff --git a/static/js/core-config-setup.js b/static/js/core-config-setup.js
index c7ad79b76..7d22d9fed 100644
--- a/static/js/core-config-setup.js
+++ b/static/js/core-config-setup.js
@@ -398,10 +398,10 @@ angular.module("core-config-setup", ['angularFileUpload'])
             }
           }
 
-          // Set any boolean fields to false.
+          // Set any missing boolean fields to false.
           for (var i = 0; i < allowedFields.length; ++i) {
             if (allowedFields[i].kind == 'bool') {
-              configObject[allowedFields[i].name] = false;
+              configObject[allowedFields[i].name] = configObject[allowedFields[i].name] || false;
             }
           }
         });