diff --git a/humble/doc-build.yaml b/humble/doc-build.yaml
index b6477e44..c24d05f6 100644
--- a/humble/doc-build.yaml
+++ b/humble/doc-build.yaml
@@ -2,6 +2,7 @@
 # ROS buildfarm doc-build file
 ---
 build_environment_variables:
+  ROS_DISTRO: humble
   ROS_PYTHON_VERSION: 3
 canonical_base_url: http://docs.ros.org/en
 documentation_type: rosdoc2
diff --git a/jazzy/doc-build.yaml b/jazzy/doc-build.yaml
index 3bd5b15c..b0a93a20 100644
--- a/jazzy/doc-build.yaml
+++ b/jazzy/doc-build.yaml
@@ -2,6 +2,7 @@
 # ROS buildfarm doc-build file
 ---
 build_environment_variables:
+  ROS_DISTRO: jazzy
   ROS_PYTHON_VERSION: 3
 canonical_base_url: http://docs.ros.org/en
 documentation_type: rosdoc2
diff --git a/rolling/doc-build.yaml b/rolling/doc-build.yaml
index 3bd5b15c..1c0b917d 100644
--- a/rolling/doc-build.yaml
+++ b/rolling/doc-build.yaml
@@ -2,6 +2,7 @@
 # ROS buildfarm doc-build file
 ---
 build_environment_variables:
+  ROS_DISTRO: rolling
   ROS_PYTHON_VERSION: 3
 canonical_base_url: http://docs.ros.org/en
 documentation_type: rosdoc2