diff --git a/test/lit.cfg b/test/lit.cfg
index 061f2947e6bcf..7e4730f1685f3 100644
--- a/test/lit.cfg
+++ b/test/lit.cfg
@@ -2742,6 +2742,8 @@ extraCheckWarningFlags = (
 # Verifies that a C++ file can be compiled without warnings except for some exceptions.
 config.substitutions.insert(0, ('%check-c-header-in-clang',
   '%clang -fsyntax-only -x c-header ' + extraCheckWarningFlags +
+  ' --sysroot %r ' % config.variant_sdk +
+  '-target %r ' % config.variant_triple +
   # Use standard header/framework search paths.
   '-F %%clang-importer-sdk-path/frameworks '
   '-I %%clang-include-dir '
@@ -2751,6 +2753,7 @@ config.substitutions.insert(0, ('%check-c-header-in-clang',
 config.substitutions.insert(0, ('%check-cxx-header-in-clang',
   '%clangxx -fsyntax-only -x c++-header ' + extraCheckWarningFlags +
   ' --sysroot %r ' % config.variant_sdk +
+  '-target %r ' % config.variant_triple +
   # Use standard header/framework search paths.
   '-F %%clang-importer-sdk-path/frameworks '
   '-I %%clang-include-dir %%cxx-stdlib-include '