diff --git a/clang/test/Preprocessor/headermap-rel2.c b/clang/test/Preprocessor/headermap-rel2.c
index e29e5ee6caf4..e00f4e6902aa 100644
--- a/clang/test/Preprocessor/headermap-rel2.c
+++ b/clang/test/Preprocessor/headermap-rel2.c
@@ -1,6 +1,7 @@
 // This uses a headermap with this entry:
 //   someheader.h -> Product/someheader.h
 
+// RUN: %clang_cc1 -v -fsyntax-only %s -iquote %S/Inputs/headermap-rel2/project-headers.hmap -isysroot %S/Inputs/headermap-rel2/system -I %S/Inputs/headermap-rel2 -H
 // RUN: %clang_cc1 -fsyntax-only %s -iquote %S/Inputs/headermap-rel2/project-headers.hmap -isysroot %S/Inputs/headermap-rel2/system -I %S/Inputs/headermap-rel2 -H 2> %t.out
 // RUN: FileCheck %s -input-file %t.out