diff --git a/frontend/src/pages/MarketEvents.tsx b/frontend/src/pages/MarketEvents.tsx
index 73fd406..ec13ddb 100644
--- a/frontend/src/pages/MarketEvents.tsx
+++ b/frontend/src/pages/MarketEvents.tsx
@@ -520,11 +520,11 @@ function EventDetail({
           })
           const cd = await cr.json()
           if (!cr.ok) throw new Error(cd.detail || cr.statusText)
-          const newTmplId = cd.template?.id ?? cd.template_id
+          const newTmplId = cd.id ?? cd.template?.id ?? cd.template_id
           if (newTmplId) {
-            setTemplates(prev => [...prev, cd.template].filter(Boolean))
+            setTemplates(prev => [...prev, { id: newTmplId, name: cd.name, category: cd.category, graph_json: cd.graph_json, instruments: cd.instruments, calibration_json: {} }])
             setSelTmpl(newTmplId)
-            setRecMsg(`✦ Nouveau template créé : ${cd.template?.name ?? 'template'}`)
+            setRecMsg(`✦ Nouveau template créé : ${cd.name ?? 'template'}`)
             await instantiate(newTmplId)
           } else {
             setRecMsg('Template créé mais ID manquant')