diff --git a/example/assets/sample_data.json b/example/assets/sample_data.json
index 0e7f9e8d..467bcadd 100644
--- a/example/assets/sample_data.json
+++ b/example/assets/sample_data.json
@@ -536,10 +536,5 @@
   },
   {
     "insert": "\n"
-  },
-  {
-    "insert": {
-      "formula": "x=\\frac{-b\\pm\\sqrt{b^2-4ac}}{2a}"
-    }
   }
-]
+]
\ No newline at end of file