diff --git a/test/IRGen/temporary_allocation/codegen_very_large_allocation.swift b/test/IRGen/temporary_allocation/codegen_very_large_allocation.swift
index 116f061dd1b7d..c5540d31762e2 100644
--- a/test/IRGen/temporary_allocation/codegen_very_large_allocation.swift
+++ b/test/IRGen/temporary_allocation/codegen_very_large_allocation.swift
@@ -10,6 +10,10 @@
 // On iOS _stdlib_isOSVersionAtLeast() is @_transparent, which affects codegen.
 // UNSUPPORTED: OS=ios
 
+// When macCatalyst support is enabled, isOSVersionAtLeast transforms into
+// isOSVersionAtLeastOrVariantVersionAtLeast
+// UNSUPPORTED: maccatalyst_support
+
 @_silgen_name("blackHole")
 func blackHole(_ value: UnsafeMutableRawPointer?) -> Void