1 files changed, 1 insertions, 1 deletions
diff --git a/src/os/unix/ngx_os.h b/src/os/unix/ngx_os.h
index e39aab0ef..97a29e69f 100644
--- a/src/os/unix/ngx_os.h
+++ b/src/os/unix/ngx_os.h
@@ -31,7 +31,7 @@ typedef struct {
 } ngx_os_io_t;
 
 
-void ngx_debug_init();
+void ngx_debug_init(void);
 ngx_int_t ngx_os_init(ngx_log_t *log);
 void ngx_os_status(ngx_log_t *log);
 ngx_int_t ngx_daemon(ngx_log_t *log);