diff --git a/model/fvp_common.sh b/model/fvp_common.sh
index 2f9cd17..ef29c3b 100644
--- a/model/fvp_common.sh
+++ b/model/fvp_common.sh
@@ -82,7 +82,7 @@
 
 EOF
 
-if echo "$JENKINS_URL" | grep -q -v "arm.com"; then
+if ! is_arm_jenkins_env; then
 	cat <<EOF >>"$model_param_file"
 -C bp.pl011_uart0.untimed_fifos=1
 -C bp.pl011_uart1.untimed_fifos=1