--- inn-2.5.3/lib/newsuser.c.orig	2012-06-15 20:25:36.000000000 +0200
+++ inn-2.5.3/lib/newsuser.c	2013-06-13 15:36:33.750595785 +0200
@@ -93,6 +93,8 @@
     if (getegid() != gid || getgid() != gid) {
         die ("must be run as %s group", innconf->runasgroup);
     }
+    const char *runasuser = innconf != NULL ? innconf->runasuser : RUNASUSER;
+    initgroups(runasuser, gid);
 }
 
 /*