diff --git a/packages/core/src/App.ts b/packages/core/src/App.ts
index c82bff35..705c8510 100644
--- a/packages/core/src/App.ts
+++ b/packages/core/src/App.ts
@@ -44,7 +44,7 @@ interface EventCache {
 
 class App extends EventEmitter {
   public env;
-  public codeDsl: CodeBlockDSL;
+  public codeDsl: CodeBlockDSL | undefined;
   public pages = new Map<Id, Page>();
 
   public page: Page | undefined;
diff --git a/packages/core/src/Node.ts b/packages/core/src/Node.ts
index 622cfb4b..ad61527c 100644
--- a/packages/core/src/Node.ts
+++ b/packages/core/src/Node.ts
@@ -85,9 +85,9 @@ class Node extends EventEmitter {
   }
 
   private async runCodeBlock(hook: string) {
-    if (!Array.isArray(this.data[hook]) || isEmpty(this.app?.codeDsl)) return;
+    if (!Array.isArray(this.data[hook]) || !this.app.codeDsl || isEmpty(this.app?.codeDsl)) return;
     for (const codeId of this.data[hook]) {
-      if (this.app?.codeDsl[codeId] && typeof this.app?.codeDsl[codeId]?.content === 'function') {
+      if (this.app.codeDsl[codeId] && typeof this.app?.codeDsl[codeId]?.content === 'function') {
         await this.app.codeDsl[codeId].content(this);
       }
     }