diff --git a/sysa/run.sh b/sysa/run.sh
index c2a393d..243d7b9 100755
--- a/sysa/run.sh
+++ b/sysa/run.sh
@@ -221,7 +221,10 @@ build autoconf-2.64
 
 build gcc-4.0.4 pass1.sh checksums/pass1
 
+# This hack fixes a strange bug in mes libc bash
+set -x
 build linux-headers-5.10.41 '' '' '' linux-5.10.41
+set +x
 
 build musl-1.2.2