diff --git a/frontend/task/TaskRestartButton.tsx b/frontend/task/TaskRestartButton.tsx
index b888deb7..c37f0c19 100644
--- a/frontend/task/TaskRestartButton.tsx
+++ b/frontend/task/TaskRestartButton.tsx
@@ -5,14 +5,16 @@ import {useDispatch} from 'react-redux';
 import {bufferResetToDefaultSourceCode} from '../buffers/buffer_actions';
 import {useAppSelector} from '../hooks';
 import {quickAlgoLibraries} from './libs/quick_algo_libraries_model';
+import {selectActiveBufferPlatform} from '../buffers/buffer_selectors';
 
 export function TaskRestartButton() {
     const dispatch = useDispatch();
     const activeBufferName = useAppSelector(state => state.buffers.activeBufferName);
+    const activeBufferPlatform = useAppSelector(selectActiveBufferPlatform);
 
     const environment = useAppSelector(state => state.environment);
     const context = quickAlgoLibraries.getContext(null, environment);
-    if (!context?.infos?.startingExample) {
+    if (!context?.infos?.startingExample || !(activeBufferPlatform in context?.infos?.startingExample)) {
         return null;
     }