diff --git a/src/testdir/test10.in b/src/testdir/test10.in
index f15c4f5..6d0c721 100644
--- a/src/testdir/test10.in
+++ b/src/testdir/test10.in
@@ -1,4 +1,4 @@
-Test for 'errorformat'.
+Test for 'errorformat'.  This will fail if the quickfix feature was disabled.
 
 STARTTEST
 :so small.vim