From d2f3c6125b8b14f2ba924a954516e457e570bc4d Mon Sep 17 00:00:00 2001
From: Lukasz Samson <lukaszsamson@gmail.com>
Date: Wed, 8 Apr 2026 16:26:02 +0200
Subject: [PATCH] pass correct bitstring meta during expansion

Fixes #15244
---
 lib/elixir/src/elixir_bitstring.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/elixir/src/elixir_bitstring.erl b/lib/elixir/src/elixir_bitstring.erl
index 1ad1242b17d..d78250d4463 100644
--- a/lib/elixir/src/elixir_bitstring.erl
+++ b/lib/elixir/src/elixir_bitstring.erl
@@ -61,7 +61,7 @@ expand(BitstrMeta, Fun, [H | T], Acc, S, E, Alignment, RequireSize) ->
 
   InferredMeta = [{inferred_bitstring_spec, true} | Meta],
   EAcc = concat_or_prepend_bitstring(InferredMeta, ELeft, ERight, Acc, ES, MatchOrRequireSize),
-  expand(Meta, Fun, T, EAcc, {SS, OriginalS}, ES, Alignment, RequireSize).
+  expand(BitstrMeta, Fun, T, EAcc, {SS, OriginalS}, ES, Alignment, RequireSize).
 
 extract_meta({_, Meta, _}, _) -> Meta;
 extract_meta(_, Meta) -> Meta.