diff --git a/debian/README.build b/debian/README.build
index 5713a869f..156d6ba6f 100644
--- a/debian/README.build
+++ b/debian/README.build
@@ -8,3 +8,4 @@ linux-kernel-nonfree-<version>.orig.tar.gz.  Ignore the nonfree tarball
 for now.
 3) Unpack linux-kernel-<version>.orig.tar.gz, cd into the new directory,
 and do a 'svn export' to get the debian/ subdirectory.
+4) Build debian/control by running 'debian/rules debian/control'.