Index: ngx_shmem.c
===================================================================
--- ngx_shmem.c	(revision 4567)
+++ ngx_shmem.c	(working copy)
@@ -15,7 +15,7 @@
     u_char    *name;
     uint64_t   size;
 
-    name = ngx_alloc(shm->name.len + 2 + sizeof(NGX_INT32_LEN), shm->log);
+    name = ngx_alloc(shm->name.len + 2 + NGX_INT32_LEN, shm->log);
     if (name == NULL) {
         return NGX_ERROR;
     }