diff --git a/src/os/unix/ngx_pthread.h b/src/os/unix/ngx_pthread.h
new file mode 100644
index 0000000..845655f
--- /dev/null
+++ b/src/os/unix/ngx_pthread.h
@@ -0,0 +1,14 @@
+#ifndef _NGX_OS_THREAD_H_INCLUDED_
+#define _NGX_OS_THREAD_H_INCLUDED_
+
+
+#include <pthread.h>
+
+
+typedef pthread_t          ngx_os_tid_t;
+typedef int                ngx_tid_t;
+
+typedef void *(*)(void *)  ngx_thread_start_routine_t
+
+
+#endif /* _NGX_OS_THREAD_H_INCLUDED_ */