diff --git a/src/ast/query.rs b/src/ast/query.rs
index 9a25358c5..bc32bf407 100644
--- a/src/ast/query.rs
+++ b/src/ast/query.rs
@@ -259,7 +259,7 @@ impl fmt::Display for Select {
             GroupByExpr::All => write!(f, " GROUP BY ALL")?,
             GroupByExpr::Expressions(exprs) => {
                 if !exprs.is_empty() {
-                    write!(f, " GROUP BY {}", display_comma_separated(&exprs))?;
+                    write!(f, " GROUP BY {}", display_comma_separated(exprs))?;
                 }
             }
         }
diff --git a/tests/sqlparser_common.rs b/tests/sqlparser_common.rs
index ddb25ae6d..806efe538 100644
--- a/tests/sqlparser_common.rs
+++ b/tests/sqlparser_common.rs
@@ -1824,7 +1824,7 @@ fn parse_select_group_by_all() {
     let sql = "SELECT id, fname, lname, SUM(order) FROM customer GROUP BY ALL";
     let select = verified_only_select(sql);
     assert_eq!(GroupByExpr::All, select.group_by);
-    
+
     one_statement_parses_to(
         "SELECT id, fname, lname, SUM(order) FROM customer GROUP BY ALL",
         "SELECT id, fname, lname, SUM(order) FROM customer GROUP BY ALL",