diff --git a/.gitea/workflows/release.yaml b/.gitea/workflows/release.yaml
index 062fa37..37fb060 100644
--- a/.gitea/workflows/release.yaml
+++ b/.gitea/workflows/release.yaml
@@ -36,7 +36,11 @@ jobs:
           set -eux
           SUDO=""; [ "$(id -u)" -ne 0 ] && SUDO=sudo
           $SUDO apt-get update
-          $SUDO apt-get install -y --no-install-recommends gcc gcc-x86-64-linux-gnu jq curl ca-certificates
+          # gcc: native (arm64) C-compiler för ring. gcc-x86-64-linux-gnu + libc6-dev-amd64-cross:
+          # cross-compiler OCH x86_64-målets libc-headers/-libs (annars hittar cross-gcc:n
+          # inte bits/libc-header-start.h när ring:s C-kod byggs).
+          $SUDO apt-get install -y --no-install-recommends \
+            gcc gcc-x86-64-linux-gnu libc6-dev-amd64-cross jq curl ca-certificates
 
           # Rust (om det saknas på runnern).
           if ! command -v cargo >/dev/null 2>&1; then