diff --git a/SConscript.unix b/SConscript.unix
index 10e54e826..522369aea 100644
--- a/SConscript.unix
+++ b/SConscript.unix
@@ -154,6 +154,7 @@ SOURCE_MICROPYTHON = [
     'vendor/micropython/py/mpz.c',
     'vendor/micropython/py/nativeglue.c',
     'vendor/micropython/py/nlrx86.c',
+    'vendor/micropython/py/nlrx64.c',
     'vendor/micropython/py/obj.c',
     'vendor/micropython/py/objarray.c',
     'vendor/micropython/py/objattrtuple.c',