diff --git a/servers/nextjs/app/(presentation-generator)/outline/components/TemplateSelection.tsx b/servers/nextjs/app/(presentation-generator)/outline/components/TemplateSelection.tsx
index d48dae07..d584fc74 100644
--- a/servers/nextjs/app/(presentation-generator)/outline/components/TemplateSelection.tsx
+++ b/servers/nextjs/app/(presentation-generator)/outline/components/TemplateSelection.tsx
@@ -35,7 +35,7 @@ const TemplateSelection: React.FC<TemplateSelectionProps> = ({
         const map: Record<string, { lastUpdatedAt?: number; name?: string; description?: string }> = {};
         if (data && Array.isArray(data.presentations)) {
           for (const p of data.presentations) {
-            const slug = `custom-${p.presentation}`;
+            const slug = `custom-${p.presentation_id}`;
             map[slug] = {
               lastUpdatedAt: p.last_updated_at ? new Date(p.last_updated_at).getTime() : 0,
               name: p.template?.name,
diff --git a/servers/nextjs/app/(presentation-generator)/template-preview/page.tsx b/servers/nextjs/app/(presentation-generator)/template-preview/page.tsx
index ef19e1a5..ef11baac 100644
--- a/servers/nextjs/app/(presentation-generator)/template-preview/page.tsx
+++ b/servers/nextjs/app/(presentation-generator)/template-preview/page.tsx
@@ -46,7 +46,7 @@ const LayoutPreview = () => {
         const map: Record<string, { lastUpdatedAt?: number; name?: string; description?: string }> = {};
         if (data && Array.isArray(data.presentations)) {
           for (const p of data.presentations) {
-            const slug = `custom-${p.presentation}`;
+            const slug = `custom-${p.presentation_id}`;
             map[slug] = {
               lastUpdatedAt: p.last_updated_at ? new Date(p.last_updated_at).getTime() : 0,
               name: p.template?.name,