diff --git a/clang/test/Sema/attr-alwaysinline.cpp b/clang/test/Sema/attr-alwaysinline.cpp
index f60cb5e3adfb1..6b71a0e86bf12 100644
--- a/clang/test/Sema/attr-alwaysinline.cpp
+++ b/clang/test/Sema/attr-alwaysinline.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -verify -fsyntax-only %s
+// RUN: %clang_cc1 -verify -fsyntax-only %s -Wno-c++17-extensions
 
 int bar();
 
diff --git a/clang/test/Sema/attr-noinline.cpp b/clang/test/Sema/attr-noinline.cpp
index b5c3fa1536681..bd6505b9fe98e 100644
--- a/clang/test/Sema/attr-noinline.cpp
+++ b/clang/test/Sema/attr-noinline.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -verify -fsyntax-only %s
+// RUN: %clang_cc1 -verify -fsyntax-only %s -Wno-c++17-extensions
 
 int bar();