diff --git a/src/App.tsx b/src/App.tsx
index d4c3ea0..e9064f0 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -87,6 +87,7 @@ const App = () => (
           <Route path="/themes/games/sim" element={<GameOfSimPage />} />
           <Route path="/themes/cards-math" element={<CardsMath />} />
           <Route path="/themes/puzzles" element={<Puzzles />} />
+          <Route path="/themes/puzzles/stacking-blocks" element={<StackingBlocksPage />} />
           <Route path="/themes/miscellany" element={<Miscellany />} />
           <Route path="/themes/contest-problems" element={<ContestProblems />} />
           <Route path="/contest-problems/grid-tiling" element={<GridTilingPuzzlePage />} />