diff --git a/ChangeLog b/ChangeLog
index 3d655843..2336a6ee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2000-01-02  Martin Baulig  <martin@home-of-linux.org>
 
+	* include/glibtop/errors.h
+	(GLIBTOP_ERROR_DEMARSHAL_ERROR): New error constant.
+
 	* src/Makefile.am: Disable compilation of the `daemon' directory.
 
 	* include/glibtop/command.h: Removed.
diff --git a/include/glibtop/errors.h b/include/glibtop/errors.h
index cb54b5a1..7ee6c35d 100644
--- a/include/glibtop/errors.h
+++ b/include/glibtop/errors.h
@@ -47,7 +47,9 @@ BEGIN_LIBGTOP_DECLS
 #define GLIBTOP_ERROR_NO_SUCH_BACKEND		10
 #define GLIBTOP_ERROR_NOT_IMPLEMENTED		11
 
-#define GLIBTOP_MAX_ERROR			12
+#define GLIBTOP_ERROR_DEMARSHAL_ERROR		12
+
+#define GLIBTOP_MAX_ERROR			13
 
 char *
 glibtop_get_error_string_l (glibtop *server, unsigned error_number);