diff --git a/build-rootfs-size-docker.sh b/build-rootfs-size-docker.sh
index 0503878..4243ab9 100755
--- a/build-rootfs-size-docker.sh
+++ b/build-rootfs-size-docker.sh
@@ -6,7 +6,6 @@
 #   DOCKER_IMG_NAME:  <optional, the name of the docker image to generate>
 #                     default is openbmc/ubuntu-rootfs-size
 #   DISTRO:           <optional, the distro to build a docker image against>
-#                     default is ubuntu:bionic
 
 set -uo pipefail
 
diff --git a/scripts/build-qemu-robot-docker.sh b/scripts/build-qemu-robot-docker.sh
index 7d60547..b1a3055 100755
--- a/scripts/build-qemu-robot-docker.sh
+++ b/scripts/build-qemu-robot-docker.sh
@@ -13,7 +13,6 @@
 #   parm1:  <optional, the name of the docker image to generate>
 #            default is openbmc/ubuntu-robot-qemu
 #   param2: <optional, the distro to build a docker image against>
-#            default is ubuntu:focal
 
 set -uo pipefail
 
diff --git a/scripts/build-unit-test-docker b/scripts/build-unit-test-docker
index 21bd912..3007ce1 100755
--- a/scripts/build-unit-test-docker
+++ b/scripts/build-unit-test-docker
@@ -6,7 +6,6 @@
 #   DOCKER_IMG_NAME:  <optional, the name of the docker image to generate>
 #                     default is openbmc/ubuntu-unit-test
 #   DISTRO:           <optional, the distro to build a docker image against>
-#                     default is ubuntu:impish
 #   FORCE_DOCKER_BUILD: <optional, a non-zero value with force all Docker
 #                     images to be rebuilt rather than reusing caches.>
 #   BUILD_URL:        <optional, used to detect running under CI context