diff --git a/clang/test/DebugInfo/ObjCXX/lit.local.cfg b/clang/test/DebugInfo/ObjCXX/lit.local.cfg
new file mode 100644
index 0000000000000..8d5c476a2f682
--- /dev/null
+++ b/clang/test/DebugInfo/ObjCXX/lit.local.cfg
@@ -0,0 +1,5 @@
+# objective-CXX is not supported on AIX and zOS
+unsupported_platforms = [ "system-aix", "system-zos" ]
+
+if any(up in config.available_features for up in unsupported_platforms):
+    config.unsupported = True