diff --git a/modules/objfmts/macho/macho-objfmt.c b/modules/objfmts/macho/macho-objfmt.c
index bef564a..1b00918 100644
--- a/modules/objfmts/macho/macho-objfmt.c
+++ b/modules/objfmts/macho/macho-objfmt.c
@@ -1498,7 +1498,7 @@
         msd->flags = flags;
         yasm_section_set_align(retval, align, line);
     } else if (flags_override) {
-        // align is the only value used from overrides.
+        /* align is the only value used from overrides. */
         if (yasm_section_get_align(retval) != align) {
             yasm_warn_set(YASM_WARN_GENERAL,
                           N_("section flags ignored on section redeclaration"));