diff --git a/LDP/howto/docbook/GNU-Build-System-HOWTO/GNU-Build-System-HOWTO.xml b/LDP/howto/docbook/GNU-Build-System-HOWTO/GNU-Build-System-HOWTO.xml
index f311b01d..97563f5f 100644
--- a/LDP/howto/docbook/GNU-Build-System-HOWTO/GNU-Build-System-HOWTO.xml
+++ b/LDP/howto/docbook/GNU-Build-System-HOWTO/GNU-Build-System-HOWTO.xml
@@ -11,7 +11,7 @@ $Id$
 -->
 
 <!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
-     "/usr/share/sgml/docbook/dtd/4.1/docbook.dtd" [
+    "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
 
   <!ENTITY make "<command>make</command>">
   <!ENTITY autoconf "<command>autoconf</command>">
@@ -490,10 +490,10 @@ $(TARGET): $(OBJS)
         $(CC) $(OBJS) -o $(TARGET)
 
 main.o: main.c hello.h world.h
-        $(CC) $(CCOPTS) $<
+        $(CC) $(CCOPTS) $&lt;
 
 %.o: %.c %.h
-        $(CC) $(CCOPTS) $<
+        $(CC) $(CCOPTS) $&lt;
 
 clean:
         $(RM) $(RMOPTS) $(TARGET) $(OBJS)