diff --git a/pmb/aportgen/musl.py b/pmb/aportgen/musl.py
index 909cdbc5..d1ac7a6c 100644
--- a/pmb/aportgen/musl.py
+++ b/pmb/aportgen/musl.py
@@ -101,7 +101,9 @@ def generate(args, pkgname):
             package_dev() {
                 mkdir -p "$subpkgdir/usr/$_target"
                 cd "$subpkgdir/usr/$_target"
-                tar -xf $srcdir/musl-dev-$pkgver-r$pkgrel-$_arch.apk
+                # Use 'busybox tar' to avoid 'tar: Child returned status 141'
+                # on some machines (builds.sr.ht, gitlab-ci). See pmaports#26.
+                busybox tar -xf $srcdir/musl-dev-$pkgver-r$pkgrel-$_arch.apk
                 rm .PKGINFO .SIGN.*
 
                 # symlink everything from /usr/$_target/usr/* to /usr/$_target/*