diff --git a/systemd-mini.spec b/systemd-mini.spec
index 3c6abe35..87aa79ec 100644
--- a/systemd-mini.spec
+++ b/systemd-mini.spec
@@ -690,7 +690,7 @@ if [ $1 -eq 1 ]; then
 fi
 
 # check if /etc/machine-id is writeable and change it to readonly 
-[[ -w %{_sysconfdir}/machine-id ]] && chmod 444 %{_sysconfdir}/machine-id
+[ ! -w %{_sysconfdir}/machine-id ] || chmod 444 %{_sysconfdir}/machine-id
 
 %if ! 0%{?bootstrap}
 pam-config --add --systemd || :
diff --git a/systemd.spec b/systemd.spec
index a8a133d2..23af17e2 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -688,7 +688,7 @@ if [ $1 -eq 1 ]; then
 fi
 
 # check if /etc/machine-id is writeable and change it to readonly 
-[[ -w %{_sysconfdir}/machine-id ]] && chmod 444 %{_sysconfdir}/machine-id
+[ ! -w %{_sysconfdir}/machine-id ] || chmod 444 %{_sysconfdir}/machine-id
 
 %if ! 0%{?bootstrap}
 pam-config --add --systemd || :