diff --git a/frontend/fic/src/routes/tags/[tag]/+page.svelte b/frontend/fic/src/routes/tags/[tag]/+page.svelte
index a16a5704..acba8de4 100644
--- a/frontend/fic/src/routes/tags/[tag]/+page.svelte
+++ b/frontend/fic/src/routes/tags/[tag]/+page.svelte
@@ -26,7 +26,7 @@
          const th = $themes[k];
          for (const ex of th.exercices) {
              if (ex.tags.indexOf(data.tag) >= 0) {
-                 tmp_exercices.push({theme: th, exercice: ex, index: k + "," + ex});
+                 tmp_exercices.push({theme: th, exercice: ex, index: k + "," + ex.id});
              }
          }
      }