diff --git a/src/extensions/registries/__tests__/page-registry.test.ts b/src/extensions/registries/__tests__/page-registry.test.ts
index b293b598dc..508282003c 100644
--- a/src/extensions/registries/__tests__/page-registry.test.ts
+++ b/src/extensions/registries/__tests__/page-registry.test.ts
@@ -28,4 +28,8 @@ describe("getPageUrl", () => {
     ext.manifest.name = "@foo/bar"
     expect(getPageUrl(ext)).toBe("/extension/foo-bar")
   })
+
+  it("adds / prefix", () => {
+    expect(getPageUrl(ext, "test")).toBe("/extension/foo-bar/test")
+  })
 })
diff --git a/src/extensions/registries/page-menu-registry.ts b/src/extensions/registries/page-menu-registry.ts
index dc1ef6669c..9da53dea06 100644
--- a/src/extensions/registries/page-menu-registry.ts
+++ b/src/extensions/registries/page-menu-registry.ts
@@ -18,11 +18,6 @@ export interface PageMenuRegistration {
   components: PageMenuComponents;
 }
 
-export interface PageSubMenuRegistration {
-  url: string;
-  title: React.ReactNode;
-}
-
 export interface PageMenuComponents {
   Icon: React.ComponentType<IconProps>;
 }
diff --git a/src/extensions/registries/page-registry.ts b/src/extensions/registries/page-registry.ts
index 7c34a7b9c4..1618b59410 100644
--- a/src/extensions/registries/page-registry.ts
+++ b/src/extensions/registries/page-registry.ts
@@ -14,12 +14,6 @@ export interface PageRegistration {
   components: PageComponents;
 }
 
-export interface SubPageRegistration {
-  routePath: string; // required for sub-pages
-  exact?: boolean;
-  components: PageComponents;
-}
-
 export interface PageComponents {
   Page: React.ComponentType<any>;
 }
@@ -27,6 +21,9 @@ export interface PageComponents {
 const routePrefix = "/extension/:name"
 
 export function getPageUrl(ext: LensExtension, baseUrl = "") {
+  if (baseUrl !== "" && !baseUrl.startsWith("/")) {
+    baseUrl = "/" + baseUrl
+  }
   const validUrlName = ext.name.replace("@", "").replace("/", "-");
   return compile(routePrefix)({ name: validUrlName }) + baseUrl;
 }
@@ -35,9 +32,12 @@ export class PageRegistry<T extends PageRegistration> extends BaseRegistry<T> {
 
   @action
   add(items: T[], ext?: LensExtension) {
-    const normalizedItems = items.map((i) => {
-      i.routePath = getPageUrl(ext, i.routePath)
-      return i
+    const normalizedItems = items.map((page) => {
+      if (!page.routePath) {
+        page.routePath = `/${page.id}`
+      }
+      page.routePath = getPageUrl(ext, page.routePath)
+      return page
     })
     return super.add(normalizedItems);
   }