diff --git a/src/ngx_http_accounting_worker_process.c b/src/ngx_http_accounting_worker_process.c
index 87ed7cb..53abd9e 100644
--- a/src/ngx_http_accounting_worker_process.c
+++ b/src/ngx_http_accounting_worker_process.c
@@ -154,6 +154,7 @@ worker_process_write_out_stats(u_char *name, size_t len, void *val, void *para1,
             );
 
     stats->nr_requests = 0;
+    stats->bytes_in = 0;
     stats->bytes_out = 0;
 
     for (i = 0; i < http_status_code_count; i++) {