1 files changed, 2 insertions, 0 deletions
diff --git a/bootstrap/cgen.c b/bootstrap/cgen.c
index 8e2fef9..db477fd 100644
--- a/bootstrap/cgen.c
+++ b/bootstrap/cgen.c
@@ -684,6 +684,8 @@ defctype(const struct type *ty, void *_) {
       pri("typedef %s %s %s;\n", kind, *cname, *cname);
       if (!ty->agg.fwd) {
          pri("%s %s {\n", kind, *cname);
+         if (!ty->agg.flds.n)
+            pri("char _;\n");
          for (int i = 0; i < ty->agg.flds.n; ++i) {
             struct aggfield fld = ty->agg.flds.d[i];
             defctype(ty->agg.flds.d[i].ty, NULL);