diff --git a/tests/rm/Makefile.am b/tests/rm/Makefile.am
index 5700ffdb2..3dfdeee50 100644
--- a/tests/rm/Makefile.am
+++ b/tests/rm/Makefile.am
@@ -1,3 +1,4 @@
+## Process this file with automake to produce Makefile.in -*-Makefile-*-.
 AUTOMAKE_OPTIONS = 1.1 gnits
 
 TESTS = r-1 r-2 r-3 i-1 ir-1 f-1 sunos-1 deep-1