diff --git a/libc/test/UnitTest/CMakeLists.txt b/libc/test/UnitTest/CMakeLists.txt
index 31d1e9dce8204..028e8e3a2ea67 100644
--- a/libc/test/UnitTest/CMakeLists.txt
+++ b/libc/test/UnitTest/CMakeLists.txt
@@ -83,7 +83,7 @@ add_unittest_framework_library(
 )
 
 set(libc_death_test_srcs LibcDeathTestExecutors.cpp)
-if(${LIBC_TARGET_OS} STREQUAL "linux")
+if(${LIBC_TARGET_OS} STREQUAL "linux" OR ${LIBC_TARGET_OS} STREQUAL "darwin")
   list(APPEND libc_death_test_srcs ExecuteFunctionUnix.cpp)
 endif()