diff --git a/pkgs/build-support/docker/test-dummy/hello.txt b/pkgs/build-support/docker/test-dummy/hello.txt
new file mode 100644
index 000000000000..495cc9fa8f9c
--- /dev/null
+++ b/pkgs/build-support/docker/test-dummy/hello.txt
@@ -0,0 +1 @@
+Hello there!