diff --git a/coolwsd.spec.in b/coolwsd.spec.in
index 2e93f8d24..ff721d750 100644
--- a/coolwsd.spec.in
+++ b/coolwsd.spec.in
@@ -188,7 +188,7 @@ echo "   Done."
 %post
 setcap cap_fowner,cap_chown,cap_mknod,cap_sys_chroot=ep /usr/bin/coolforkit
 setcap cap_sys_admin=ep /usr/bin/coolmount
-/usr/bin/coolconfig migrateconfig --write
+if [ -f /etc/loolwsd/loolwsd.xml ]; then /usr/bin/coolconfig migrateconfig --write; fi
 
 %if 0%{?rhel} >= 7
 %systemd_post coolwsd.service
diff --git a/debian/coolwsd.postinst.in b/debian/coolwsd.postinst.in
index 2a1dba329..36a5e88be 100644
--- a/debian/coolwsd.postinst.in
+++ b/debian/coolwsd.postinst.in
@@ -6,7 +6,7 @@ case "$1" in
     configure)
 	setcap cap_fowner,cap_chown,cap_mknod,cap_sys_chroot=ep /usr/bin/coolforkit || true
 	setcap cap_sys_admin=ep /usr/bin/coolmount || true
-	/usr/bin/coolconfig migrateconfig --write
+	if [ -f /etc/loolwsd/loolwsd.xml ]; then /usr/bin/coolconfig migrateconfig --write || true; fi
 
 	adduser --quiet --system --group --home /opt/cool cool
 	chown cool: /etc/coolwsd/coolwsd.xml