diff --git a/proc/devname.h b/proc/devname.h
index 10c2cb66..d54de1cd 100644
--- a/proc/devname.h
+++ b/proc/devname.h
@@ -2,6 +2,7 @@
 #define PROC_DEVNAME_H
 
 #include "procps.h"
+#include "readproc.h"
 
 EXTERN_C_BEGIN
 
diff --git a/proc/readproc.h b/proc/readproc.h
index b9d93d9c..9d781404 100644
--- a/proc/readproc.h
+++ b/proc/readproc.h
@@ -141,6 +141,7 @@ typedef struct proc_t {
 	nlwp,		// stat,status     number of threads, or 0 if no clue
 	tgid,		// (special)       thread group ID, the POSIX PID (see also: tid)
 	tty,		// stat            full device number of controlling terminal
+	/* FIXME: int uids & gids should be uid_t or gid_t from pwd.h */
         euid, egid,     // stat(),status   effective
         ruid, rgid,     // status          real
         suid, sgid,     // status          saved