diff --git a/error.c b/error.c
index 7b0ee11c01b678..dcb1f9d391959d 100644
--- a/error.c
+++ b/error.c
@@ -979,11 +979,12 @@ bug_report_end(FILE *out, rb_pid_t pid)
 void
 ruby_test_bug_report(const char *template)
 {
+    rb_pid_t pid = -1;
     char buf[REPORT_BUG_BUFSIZ];
-    FILE *out = open_report_path(template, buf, sizeof(buf));
+    FILE *out = open_report_path(template, buf, sizeof(buf), &pid);
     if (out) {
         fputs("ruby_test_bug_report\n", out);
-        finish_report(out);
+        finish_report(out, pid);
     }
 }