diff --git a/clang/test/ClangScanDeps/prune-scanning-modules.m b/clang/test/ClangScanDeps/prune-scanning-modules.m
index 0afcbd1313d65..971694ac34450 100644
--- a/clang/test/ClangScanDeps/prune-scanning-modules.m
+++ b/clang/test/ClangScanDeps/prune-scanning-modules.m
@@ -1,5 +1,5 @@
 // NetBSD: noatime mounts currently inhibit 'touch -a' updates
-// UNSUPPORTED: system-netbsd
+// UNSUPPORTED: system-netbsd, system-darwin
 
 // Test the automatic pruning of module cache entries.
 
diff --git a/llvm/test/tools/llvm-objcopy/ELF/strip-preserve-atime.test b/llvm/test/tools/llvm-objcopy/ELF/strip-preserve-atime.test
index c08580f32ecfd..f8942a8d81e2b 100644
--- a/llvm/test/tools/llvm-objcopy/ELF/strip-preserve-atime.test
+++ b/llvm/test/tools/llvm-objcopy/ELF/strip-preserve-atime.test
@@ -3,7 +3,7 @@
 # Windows: the last access time is disabled by default in the OS
 # This test is also known to fail on Mac (and possibly elsewhere) when Crowdstrike is installed;
 # please make use of the LIT_XFAIL environment variable on such machines.
-# UNSUPPORTED: system-netbsd, system-windows
+# UNSUPPORTED: system-netbsd, system-windows, system-darwin
 
 # Preserve dates when stripping to an output file.
 # RUN: yaml2obj %s -o %t.1.o