diff --git a/lib/core/src/server/presets.js b/lib/core/src/server/presets.js
index 833a07832a04..71cb8b5432f5 100644
--- a/lib/core/src/server/presets.js
+++ b/lib/core/src/server/presets.js
@@ -69,8 +69,8 @@ export const resolveAddonName = name => {
   if (path) {
     return {
       name,
-      // Accept `register`, `register.js`, `require.resolve('foo/register') cases
-      type: path.match(/register(.js)?$/) ? 'managerEntries' : 'presets',
+      // Accept `register`, `register.js`, `require.resolve('foo/register'), `register_panel`
+      type: path.match(/register(_panel)?(.js)?$/) ? 'managerEntries' : 'presets',
     };
   }
 
diff --git a/lib/core/src/server/presets.test.js b/lib/core/src/server/presets.test.js
index b1c61d44a003..85d2c44851d8 100644
--- a/lib/core/src/server/presets.test.js
+++ b/lib/core/src/server/presets.test.js
@@ -389,8 +389,7 @@ describe('splitAddons', () => {
       '@storybook/addon-actions/register',
       'storybook-addon-readme/register',
       'addon-foo/register.js',
-      './local-addon-relative/register',
-      '/local-addon-absolute/register',
+      '@storybook/addon-notes/register_panel',
     ];
     expect(splitAddons(addons)).toEqual({
       managerEntries: addons,