diff --git a/packages/core-components/src/layout/Sidebar/SidebarSubmenuItem.tsx b/packages/core-components/src/layout/Sidebar/SidebarSubmenuItem.tsx
index 1d697ead14..a0ecc75918 100644
--- a/packages/core-components/src/layout/Sidebar/SidebarSubmenuItem.tsx
+++ b/packages/core-components/src/layout/Sidebar/SidebarSubmenuItem.tsx
@@ -30,7 +30,7 @@ import ArrowDropDownIcon from '@material-ui/icons/ArrowDropDown';
 import ArrowDropUpIcon from '@material-ui/icons/ArrowDropUp';
 import { SidebarItemWithSubmenuContext } from './config';
 import { isLocationMatch } from './utils';
-import { Link as BackstageLink } from '../../';
+import { Link as BackstageLink } from '../../components/Link';
 import { isExternalLink } from './utils';
 
 const useStyles = makeStyles<BackstageTheme>(theme => ({
diff --git a/packages/core-components/src/layout/Sidebar/utils.ts b/packages/core-components/src/layout/Sidebar/utils.ts
index 7c85110aca..0c586ee3b3 100644
--- a/packages/core-components/src/layout/Sidebar/utils.ts
+++ b/packages/core-components/src/layout/Sidebar/utils.ts
@@ -34,4 +34,4 @@ export function isLocationMatch(currentLocation: Location, toLocation: Path) {
   return matching;
 }
 
-export const isExternalLink = (link: string) => /^http/.test(link);
+export const isExternalLink = (link: string) => /^https?:/.test(link);