diff --git a/compiler-rt/lib/asan/CMakeLists.txt b/compiler-rt/lib/asan/CMakeLists.txt
index 48d0e91052d73..f993521d3ca88 100644
--- a/compiler-rt/lib/asan/CMakeLists.txt
+++ b/compiler-rt/lib/asan/CMakeLists.txt
@@ -46,7 +46,7 @@ set(ASAN_STATIC_SOURCES
   asan_rtl_static.cpp
   )
 
-if (ASAN_SUPPORTED_ARCH STREQUAL "x86_64" AND NOT WIN32 AND NOT APPLE)
+if ("x86_64" IN_LIST ASAN_SUPPORTED_ARCH AND NOT WIN32 AND NOT APPLE)
   list(APPEND ASAN_STATIC_SOURCES
     asan_rtl_x86_64.S
   )