diff --git a/lang/src/fmt.rs b/lang/src/fmt.rs
index dcdba411..2468064e 100644
--- a/lang/src/fmt.rs
+++ b/lang/src/fmt.rs
@@ -3,7 +3,7 @@ use {
         lexer::{self, Lexer, TokenKind},
         parser::{self, CommentOr, CtorField, Expr, Poser, Radix, StructField},
     },
-    core::fmt,
+    core::fmt::{self},
 };
 
 pub fn display_radix(radix: Radix, mut value: u64, buf: &mut [u8; 64]) -> &str {
@@ -263,6 +263,20 @@ impl<'a> Formatter<'a> {
                     },
                 )
             }
+            Expr::Tupl {
+                pos,
+                ty: Some(&Expr::Slice { pos: spos, size: Some(&Expr::Number { value, .. }), item }),
+                fields,
+                trailing_comma,
+            } if value as usize == fields.len() => self.fmt(
+                &Expr::Tupl {
+                    pos,
+                    ty: Some(&Expr::Slice { pos: spos, size: None, item }),
+                    fields,
+                    trailing_comma,
+                },
+                f,
+            ),
             Expr::Tupl { ty, fields, trailing_comma, .. } => {
                 if let Some(ty) = ty {
                     self.fmt_paren(ty, f, unary)?;
diff --git a/lang/src/parser.rs b/lang/src/parser.rs
index 0712d113..3a89ce2d 100644
--- a/lang/src/parser.rs
+++ b/lang/src/parser.rs
@@ -155,9 +155,7 @@ impl<'a, 'b> Parser<'a, 'b> {
 
     fn bin_expr(&mut self, mut fold: Expr<'a>, min_prec: u8, top_level: bool) -> Option<Expr<'a>> {
         loop {
-            let Some(prec) = self.token.kind.precedence() else {
-                break;
-            };
+            let Some(prec) = self.token.kind.precedence() else { break };
 
             if prec <= min_prec {
                 break;