diff --git a/C/dlmalloc.c b/C/dlmalloc.c
index 65db676d6..b1b30ada2 100755
--- a/C/dlmalloc.c
+++ b/C/dlmalloc.c
@@ -1,4 +1,7 @@
 #include "Yap.h"
+
+#if USE_DL_MALLOC
+
 #include "Heap.h"
 #if HAVE_STRING_H
 #include <string.h>
@@ -6,8 +9,6 @@
 #include "alloc.h"
 #include "dlmalloc.h"
 
-#if USE_DL_MALLOC
-
 /*
   This is a version (aka dlmalloc) of malloc/free/realloc written by
   Doug Lea and released to the public domain.  Use, modify, and
diff --git a/docs/yap.tex b/docs/yap.tex
index c59d76cfe..277882d12 100644
--- a/docs/yap.tex
+++ b/docs/yap.tex
@@ -8,9 +8,9 @@
 @c @setchapternewpage odd
 @c %**end of header
 
-@set VERSION 4.5.3
-@set EDITION 4.2.3
-@set UPDATED January 2002
+@set VERSION 4.5.4
+@set EDITION 4.2.4
+@set UPDATED November 2004
 
 @c Index for C-Prolog compatible predicate
 @defindex cy
diff --git a/misc/Yap.spec b/misc/Yap.spec
index 3c26fceea..c223340bd 100644
--- a/misc/Yap.spec
+++ b/misc/Yap.spec
@@ -3,7 +3,7 @@
 
 Name: Yap
 Summary: Prolog Compiler
-Version: 4.5.3
+Version: 4.5.4
 Packager:     Vitor Santos Costa <vitor@cos.ufrj.br>
 Release: 1
 Source: http://www.ncc.up.pt/~vsc/Yap/%{name}-%{version}.tar.gz