diff --git a/.github/ci-prerequisites.sh b/.github/ci-prerequisites.sh
index 91a65fad52..4902f78ef2 100755
--- a/.github/ci-prerequisites.sh
+++ b/.github/ci-prerequisites.sh
@@ -1,5 +1,6 @@
 # Reclaim disk space, otherwise we only have 13 GB free at the start of a job
 
+# Remove the container images for node:
 docker rmi node:10 node:12 mcr.microsoft.com/azure-pipelines/node8-typescript:latest
 # That is 18 GB
 sudo rm -rf /usr/share/dotnet