diff --git a/src/sqlparser.rs b/src/sqlparser.rs
index adf53605..057eb34b 100644
--- a/src/sqlparser.rs
+++ b/src/sqlparser.rs
@@ -194,9 +194,9 @@ impl Parser {
                     self.parse_sql_value()
                 }
                 Token::LParen => {
-                    let expr = self.parse_expr(); // TBD (1)
+                    let expr = self.parse_expr()?;
                     self.expect_token(&Token::RParen)?;
-                    expr
+                    Ok(ASTNode::SQLNested(Box::new(expr)))
                 }
                 _ => parser_err!(format!(
                     "Prefix parser expected a keyword but found {:?}",
diff --git a/tests/sqlparser_generic.rs b/tests/sqlparser_generic.rs
index afca54e7..b2d48f56 100644
--- a/tests/sqlparser_generic.rs
+++ b/tests/sqlparser_generic.rs
@@ -420,22 +420,21 @@ fn parse_parens() {
     use self::ASTNode::*;
     use self::SQLOperator::*;
     let sql = "(a + b) - (c + d)";
-    let ast = parse_sql_expr(&sql);
     assert_eq!(
         SQLBinaryExpr {
-            left: Box::new(SQLBinaryExpr {
+            left: Box::new(SQLNested(Box::new(SQLBinaryExpr {
                 left: Box::new(SQLIdentifier("a".to_string())),
                 op: Plus,
                 right: Box::new(SQLIdentifier("b".to_string()))
-            }),
+            }))),
             op: Minus,
-            right: Box::new(SQLBinaryExpr {
+            right: Box::new(SQLNested(Box::new(SQLBinaryExpr {
                 left: Box::new(SQLIdentifier("c".to_string())),
                 op: Plus,
                 right: Box::new(SQLIdentifier("d".to_string()))
-            })
+            })))
         },
-        ast
+        verified_expr(sql)
     );
 }