diff --git a/ackermann-msgs.spec b/ackermann-msgs.spec
index e68d222bc0cbd67992ff4f9b242fbe16cb9d73b3..39f4230d3d8bb16eafa7a87d0477d4c3e22449de 100644
--- a/ackermann-msgs.spec
+++ b/ackermann-msgs.spec
@@ -7,6 +7,7 @@
 %global __requires_exclude_from ^/opt/ros/%{ros_distro}/.*$
 
 %define RosPkgName      ackermann-msgs
+%define ros_distro      noetic
 %define with_tests 0
 
 Name:           ros-%{ros_distro}-%{RosPkgName}