diff --git a/interface/src/SignIn.tsx b/interface/src/SignIn.tsx
index 297658e0e..3e2b02dd2 100644
--- a/interface/src/SignIn.tsx
+++ b/interface/src/SignIn.tsx
@@ -24,6 +24,8 @@ import { ReactComponent as NLflag } from './i18n/NL.svg';
 import { ReactComponent as DEflag } from './i18n/DE.svg';
 import { ReactComponent as GBflag } from './i18n/GB.svg';
 import { ReactComponent as SEflag } from './i18n/SE.svg';
+import { ReactComponent as PLflag } from './i18n/PL.svg';
+import { ReactComponent as NOflag } from './i18n/NO.svg';
 
 const SignIn: FC = () => {
   const authenticationContext = useContext(AuthenticationContext);
@@ -125,6 +127,14 @@ const SignIn: FC = () => {
             <SEflag style={{ width: 24 }} />
             &nbsp;SE
           </Button>
+          <Button size="small" variant={locale === 'pl' ? 'contained' : 'outlined'} onClick={() => selectLocale('pl')}>
+            <PLflag style={{ width: 24 }} />
+            &nbsp;PL
+          </Button>
+          <Button disabled size="small" variant={locale === 'no' ? 'contained' : 'outlined'} onClick={() => selectLocale('no')}>
+            <NOflag style={{ width: 24 }} />
+            &nbsp;NO
+          </Button>
         </Box>
 
         <ValidatedTextField