diff --git a/cv-bridge.spec b/cv-bridge.spec
index dec01fc4fbd83b8b2988ff4d65909e3d331969d7..c33096239d4e777aadf72a4d589faf7ac4a24011 100644
--- a/cv-bridge.spec
+++ b/cv-bridge.spec
@@ -6,6 +6,7 @@
 %global __requires_exclude_from ^/opt/ros/%{ros_distro}/.*$
 
 %define RosPkgName      cv-bridge
+%define ros_distro      humble
 
 Name:           ros-%{ros_distro}-%{RosPkgName}
 Version:        3.2.1
diff --git a/image-geometry.spec b/image-geometry.spec
index 7abe314c5b13d50a3e02c909d34bc4ee6dcc5070..c11c51100c06a95936e2fa3f404083380ff854c5 100644
--- a/image-geometry.spec
+++ b/image-geometry.spec
@@ -6,6 +6,7 @@
 %global __requires_exclude_from ^/opt/ros/%{ros_distro}/.*$
 
 %define RosPkgName      image-geometry
+%define ros_distro      humble
 
 Name:           ros-%{ros_distro}-%{RosPkgName}
 Version:        3.2.1
diff --git a/vision-opencv.spec b/vision-opencv.spec
index bf8c6022fc7ba728235b5ffa8845ede73fc02434..f737c209bfbd4a24c58def2219d533ff6e99aed6 100644
--- a/vision-opencv.spec
+++ b/vision-opencv.spec
@@ -7,6 +7,7 @@
 %global __requires_exclude_from ^/opt/ros/%{ros_distro}/.*$
 
 %define RosPkgName      vision-opencv
+%define ros_distro      humble
 
 Name:           ros-%{ros_distro}-%{RosPkgName}
 Version:        3.2.1