diff --git a/src/app/step/hf-markdown.component.ts b/src/app/step/hf-markdown.component.ts
index 3253da4f..93fe6ead 100644
--- a/src/app/step/hf-markdown.component.ts
+++ b/src/app/step/hf-markdown.component.ts
@@ -217,6 +217,10 @@ ${token}`;
   }
 
   ngOnChanges() {
+    if(!this.content){
+      return
+    }
+
     const contentWithReplacedTokens = this.replaceSessionToken(
       this.replaceVmInfoTokens(this.content),
     );