diff --git a/util/generate_build_files.py b/util/generate_build_files.py
index a3721fe5c..663d6c72b 100644
--- a/util/generate_build_files.py
+++ b/util/generate_build_files.py
@@ -45,6 +45,9 @@ NON_PERL_FILES = {
     ('linux', 'x86_64'): [
         'src/crypto/curve25519/asm/x25519-asm-x86_64.S',
     ],
+    ('mac', 'x86_64'): [
+        'src/crypto/curve25519/asm/x25519-asm-x86_64.S',
+    ],
 }