diff --git a/bin/build.sh b/bin/build.sh
index 8875f9929662279c2a754910823a12dedb0917aa..6671c4dc0ae05c3ebe20af940d222829837121cb 100755
--- a/bin/build.sh
+++ b/bin/build.sh
@@ -262,7 +262,8 @@ $TARGET/lisp/lisp -noinit -nositeinit -batch "$@" << EOF || exit 3
 (compile-file "modules:defsystem/defsystem")
 (intl::install)
 (ext:without-package-locks
-  (compile-file "modules:unix/unix"))
+  (compile-file #-linux "modules:unix/unix"
+                #+linux "modules:unix/unix-glibc2"))
 EOF