diff --git a/racket/src/racket/sconfig.h b/racket/src/racket/sconfig.h
index dbca851dbb..07ec0c1b67 100644
--- a/racket/src/racket/sconfig.h
+++ b/racket/src/racket/sconfig.h
@@ -346,6 +346,8 @@
 #  define FLUSH_SPARC_REGISTER_WINDOWS
 # elif defined(__arm__)
 #  define SCHEME_PLATFORM_LIBRARY_SUBPATH "arm-freebsd"
+# elif defined(__aarch64__)
+#  define SCHEME_PLATFORM_LIBRARY_SUBPATH "aarch64-freebsd"
 # elif defined(__powerpc__)
 #  define SCHEME_PLATFORM_LIBRARY_SUBPATH "ppc-freebsd"
 #  define MZ_USE_JIT_PPC