diff --git a/Meta/CMake/common_compile_options.cmake b/Meta/CMake/common_compile_options.cmake
index d2e5e0e40a4..dea22d1be6b 100644
--- a/Meta/CMake/common_compile_options.cmake
+++ b/Meta/CMake/common_compile_options.cmake
@@ -139,3 +139,8 @@ endif()
 if (NOT MSVC)
     add_cxx_compile_options(-fstrict-flex-arrays=2)
 endif()
+
+# FIXME: https://github.com/swiftlang/swift/issues/80764
+if (CMAKE_Swift_COMPILER_LOADED)
+    add_cxx_compile_definitions(AK_DISABLE_NO_UNIQUE_ADDRESS)
+endif()