diff --git a/lib/hx509/cert.c b/lib/hx509/cert.c
index 6659dabd1..bc3948f29 100644
--- a/lib/hx509/cert.c
+++ b/lib/hx509/cert.c
@@ -80,6 +80,8 @@ _hx509_abort(const char *fmt, ...)
     va_start(ap, fmt);
     vprintf(fmt, ap);
     va_end(ap);
+    printf("\n");
+    fflush(stdout);
     abort();
 }