diff --git a/rpm/qemu-el8.Dockerfile b/rpm/qemu-el8.Dockerfile
index a3d79419a..843e3f595 100644
--- a/rpm/qemu-el8.Dockerfile
+++ b/rpm/qemu-el8.Dockerfile
@@ -1,3 +1,6 @@
+# This is an attempt to automatically build patched RPM specs
+# More or less broken, better use *.spec.patch for now (and copy src/qemu_driver.c to SOURCES/qemu-vitastor.c)
+
 # Build packages for CentOS 8 inside a container
 # cd ..; podman build -t qemu-el8 -v `pwd`/packages:/root/packages -f rpm/qemu-el8.Dockerfile .