diff --git a/tests/test_video_side_shell.py b/tests/test_video_side_shell.py
index 14415a80..2725751b 100644
--- a/tests/test_video_side_shell.py
+++ b/tests/test_video_side_shell.py
@@ -200,7 +200,6 @@ def test_video_library_mapping_ui_present_and_video_only():
     # data-video-only so they show only on the video side.
     assert 'data-video-lib-select="movies"' in _INDEX
     assert 'data-video-lib-select="tv"' in _INDEX
-    assert "data-video-lib-save" in _INDEX
     assert "data-video-only" in _INDEX
     css = _CSS_PATH.read_text(encoding="utf-8")
     assert 'body[data-side="music"] [data-video-only]' in css  # hidden on music side
@@ -215,6 +214,7 @@ def test_video_settings_module_referenced_and_isolated():
     assert "addEventListener" in _VSETTINGS_JS
     assert "/api/video/libraries" in _VSETTINGS_JS
     assert "soulsync:video-page-shown" in _VSETTINGS_JS
+    assert "'change'" in _VSETTINGS_JS  # saves on change, like the music selector
 
 
 def test_controller_is_isolated_iife_with_no_globals():
diff --git a/webui/index.html b/webui/index.html
index cd9845a8..372285af 100644
--- a/webui/index.html
+++ b/webui/index.html
@@ -4807,12 +4807,8 @@
                                                 <option value="">Loading...</option>
                                             </select>
                                             <small style="color: #999; font-size: 0.9em; display: block; margin-top: 5px;">
-                                                Which server libraries the video side scans (doesn't affect config file)
+                                                Which libraries the video side scans. <span data-video-lib-status></span>
                                             </small>
-                                            <div style="margin-top: 8px;">
-                                                <button type="button" class="detect-button" data-video-lib-save>Save Libraries</button>
-                                                <span data-video-lib-status style="margin-left: 10px; font-size: 0.9em; color: #999;"></span>
-                                            </div>
                                         </div>
                                         <div class="form-actions">
                                             <button id="plex-config-action-button" class="detect-button" onclick="clearPlexConfiguration()">Clear Configuration</button>
diff --git a/webui/static/video/video-settings.js b/webui/static/video/video-settings.js
index 24b041cc..6530483e 100644
--- a/webui/static/video/video-settings.js
+++ b/webui/static/video/video-settings.js
@@ -67,8 +67,12 @@
     }
 
     function init() {
-        var btn = document.querySelector('[data-video-lib-save]');
-        if (btn) btn.addEventListener('click', save);
+        // Save the moment a library is picked — same behaviour as the music
+        // 'Music Library' selector above (which saves on change, no button).
+        var selects = document.querySelectorAll('[data-video-lib-select]');
+        for (var i = 0; i < selects.length; i++) {
+            selects[i].addEventListener('change', save);
+        }
         document.addEventListener('soulsync:video-page-shown', onPageShown);
     }