diff --git a/js/src/viewer/collectionTreeManifestsPanel.js b/js/src/viewer/collectionTreeManifestsPanel.js
index 80f0c1860078bee8c5caaaed41150027794b09ca..0251e569db3dc998f424b900e1e9e90a635c62c2 100644
--- a/js/src/viewer/collectionTreeManifestsPanel.js
+++ b/js/src/viewer/collectionTreeManifestsPanel.js
@@ -554,7 +554,7 @@
                 '{{#if showURLBox}}',
                   '<form action="" id="url-load-form">',
                     '<label for="url-loader">{{t "addNewObject"}}:</label>',
-                    '<input type="text" id="url-loader" name="url-load" placeholder="http://...">',
+                    '<input type="text" id="url-loader" name="url-load" placeholder="https://...">',
                     '<input type="submit" value="{{t "load"}}">',
                   '</form>',
                 '{{/if}}',
diff --git a/js/src/viewer/manifestsPanel.js b/js/src/viewer/manifestsPanel.js
index 4c745510827fead861525fe7760a04c113cb441b..47e1c250900cbb3272b13d029bde49192ad18af5 100644
--- a/js/src/viewer/manifestsPanel.js
+++ b/js/src/viewer/manifestsPanel.js
@@ -160,7 +160,7 @@
                 '{{#if showURLBox}}',
                   '<form action="" id="url-load-form">',
                     '<label for="url-loader">{{t "addNewObject"}}:</label>',
-                    '<input type="text" id="url-loader" name="url-load" placeholder="http://...">',
+                    '<input type="text" id="url-loader" name="url-load" placeholder="https://...">',
                     '<input type="submit" value="{{t "load"}}">',
                   '</form>',
                 '{{/if}}',