diff --git a/datafusion-examples/examples/plan_to_sql.rs b/datafusion-examples/examples/plan_to_sql.rs
index 3915d3991f769..77aec852c7590 100644
--- a/datafusion-examples/examples/plan_to_sql.rs
+++ b/datafusion-examples/examples/plan_to_sql.rs
@@ -50,7 +50,7 @@ fn simple_expr_to_sql_demo() -> Result<()> {
     let expr = col("a").lt(lit(5)).or(col("a").eq(lit(8)));
     let ast = expr_to_sql(&expr)?;
     let sql = format!("{}", ast);
-    assert_eq!(sql, r#"(("a" < 5) OR ("a" = 8))"#);
+    assert_eq!(sql, r#"((a < 5) OR (a = 8))"#);
     Ok(())
 }