diff --git a/clang/test/APINotes/boundssafety-errors.c b/clang/test/APINotes/boundssafety-errors.c
index 72dcbfa622931..ed65a03661190 100644
--- a/clang/test/APINotes/boundssafety-errors.c
+++ b/clang/test/APINotes/boundssafety-errors.c
@@ -1,3 +1,6 @@
+// rdar://144275431: Clang module support for TypeCoupledDeclRefInfo is broken on Linux
+// REQUIRES: system-darwin
+
 // RUN: rm -rf %t && mkdir -p %t
 // RUN: split-file %s %t/Headers
 // RUN: not %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/ModulesCache -fsyntax-only -fapinotes-modules -I %t/Headers -fexperimental-bounds-safety-attributes %t/Headers/SemaErrors.c 2>&1 | FileCheck %s
diff --git a/clang/test/APINotes/boundssafety.c b/clang/test/APINotes/boundssafety.c
index 3140d88dfcaeb..cab6325c04c58 100644
--- a/clang/test/APINotes/boundssafety.c
+++ b/clang/test/APINotes/boundssafety.c
@@ -1,3 +1,6 @@
+// rdar://144275431: Clang module support for TypeCoupledDeclRefInfo is broken on Linux
+// REQUIRES: system-darwin
+
 // RUN: rm -rf %t && mkdir -p %t
 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/ModulesCache -fsyntax-only -fapinotes-modules -I %S/Inputs/Headers -F %S/Inputs/Frameworks -fexperimental-bounds-safety-attributes %s -ast-dump -ast-dump-filter asdf | FileCheck %s
 
diff --git a/clang/test/APINotes/boundssafety.m b/clang/test/APINotes/boundssafety.m
index 19e14607c2969..dc38888161065 100644
--- a/clang/test/APINotes/boundssafety.m
+++ b/clang/test/APINotes/boundssafety.m
@@ -1,3 +1,6 @@
+// rdar://144275431: Clang module support for TypeCoupledDeclRefInfo is broken on Linux
+// REQUIRES: system-darwin
+
 // RUN: rm -rf %t && mkdir -p %t
 
 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/ModulesCache -fsyntax-only -fapinotes-modules -I %S/Inputs/Headers -F %S/Inputs/Frameworks -fexperimental-bounds-safety-attributes %s -ast-dump -ast-dump-filter asdf | FileCheck %s