diff --git a/src/testdir/test49.in b/src/testdir/test49.in
index 22191b2..bd6cb4c 100644
--- a/src/testdir/test49.in
+++ b/src/testdir/test49.in
@@ -6,6 +6,7 @@
 STARTTEST
 :so small.vim
 :se nocp nomore viminfo+=nviminfo
+:lang mess C
 :so test49.vim
 GGGGGGGGGGGGGG"rp:.-,$w! test.out
 :"