diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 3a6f7f9456..56e0a1437e 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -2945,7 +2945,7 @@ write_csvlog(ErrorData *edata)
        if (MyProcPid == PostmasterPid)
                appendCSVLiteral(&buf, "postmaster");
        else if (MyBackendType == B_BG_WORKER)
-               appendCSVLiteral(&buf, MyBgworkerEntry->bgw_type);
+               appendCSVLiteral(&buf, MyBgworkerEntry->bgw_name);
        else
                appendCSVLiteral(&buf, pgstat_get_backend_desc(MyBackendType));