nginx-0.0.1-2003-06-11-19:28:34 import
diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index 55807ef..3da25f0 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -77,7 +77,7 @@
 
     /* pid#tid */
     len += ngx_snprintf(errstr + len, sizeof(errstr) - len - 1,
-                        "%d#%d: ", ngx_getpid(), 0);
+                        PID_FMT "#%d: ", ngx_getpid(), 0);
 
 #if (HAVE_VARIADIC_MACROS)
     va_start(args, fmt);