diff --git a/README.md b/README.md
index ff606b1..ca43765 100644
--- a/README.md
+++ b/README.md
@@ -100,7 +100,7 @@ types = [:u64, :string]
 rowbinary = Ch.RowBinary.encode_rows(rows, types)
 
 %Ch.Result{num_rows: 2} =
-  Ch.query!(pid, ["INSERT INTO ch_demo(id) FORMAT RowBinary\n" | rowbinary])
+  Ch.query!(pid, ["INSERT INTO ch_demo(id, text) FORMAT RowBinary\n" | rowbinary])
 ```
 
 Similarly, you can use [`RowBinaryWithNamesAndTypes`](https://clickhouse.com/docs/en/interfaces/formats#rowbinarywithnamesandtypes) which would additionally do something like a type check.