diff --git a/test/float_tests.c b/test/float_tests.c
index 3f8ec1a..12f34fd 100644
--- a/test/float_tests.c
+++ b/test/float_tests.c
@@ -1182,4 +1182,4 @@
 
     return 0;
 }
-#endif
+#endif /* NAN_EXPERIMENT */