diff --git a/ChangeLog b/ChangeLog
index 9582b466..4b824794 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -23,6 +23,10 @@ Michael Voigt
   Jackdmp changes log
 ---------------------------
 
+2009-03-01 Stephane Letz  <letz@grame.fr>
+
+	* Raise default port number to 1024.
+
 2009-02-27 Stephane Letz  <letz@grame.fr>
 
 	* Improve generated gnuplot files for adapting code.
diff --git a/common/JackConstants.h b/common/JackConstants.h
index ce785601..d2af693e 100644
--- a/common/JackConstants.h
+++ b/common/JackConstants.h
@@ -34,7 +34,7 @@
 #define JACK_CLIENT_NAME_SIZE 64
 
 #ifndef PORT_NUM
-#define PORT_NUM 512
+#define PORT_NUM 1024
 #endif
 
 #define DRIVER_PORT_NUM 256
diff --git a/wscript b/wscript
index cb44a74a..c4d28c9e 100644
--- a/wscript
+++ b/wscript
@@ -65,9 +65,9 @@ def set_options(opt):
     opt.add_option('--doxygen', action='store_true', default=False, help='Enable build of doxygen documentation')
     opt.add_option('--profile', action='store_true', default=False, help='Build with engine profiling')
     opt.add_option('--clients', default=64, type="int", dest="clients", help='Maximum number of JACK clients')
-    opt.add_option('--ports', default=512, type="int", dest="ports", help='Maximum number of ports')
+    opt.add_option('--ports', default=1024, type="int", dest="ports", help='Maximum number of ports')
     opt.add_option('--clients', default=64, type="int", dest="clients", help='Maximum number of JACK clients')
-    opt.add_option('--ports', default=512, type="int", dest="ports", help='Maximum number of ports')
+    opt.add_option('--ports', default=1024, type="int", dest="ports", help='Maximum number of ports')
     opt.sub_options('dbus')
 
 def configure(conf):