diff --git a/ChangeLog b/ChangeLog
index 12a00504..46d52453 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 1998-07-30  Martin Baulig  <martin@home-of-linux.org>
 
+	* acconfig.h (u_int64_t, int64_t): Added.
+
 	* lib/lib.awk: Using correct `(1 << GLIBTOP_SYSDEPS_<feature>)'
 	in call to `glibtop_init_r'.
 
diff --git a/acconfig.h b/acconfig.h
index cb99bfe2..3a9774ba 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -103,7 +103,10 @@
 #undef GNOME_ENABLE_DEBUG
 #undef HAVE_GMP2_INCLUDE_DIR
 #undef HAVE_GUILE
+
 #undef ssize_t
+#undef u_int64_t
+#undef int64_t
 
 #undef HAVE_GLIBTOP_MACHINE_H
 
@@ -116,3 +119,4 @@
 #undef HAVE_LINUX_TABLE
 
 #undef HAVE_XAUTH
+