diff --git a/sysdeps/common/ChangeLog b/sysdeps/common/ChangeLog
index db21dfdb..48c01e96 100644
--- a/sysdeps/common/ChangeLog
+++ b/sysdeps/common/ChangeLog
@@ -1,3 +1,7 @@
+2004-12-09  Benoît Dejean  <tazforever@dlfp.org>
+
+	* mountlist.c: (ignore_mount_entry): Ignores "unkown" file system type.
+
 2004-09-24  Benoît Dejean  <tazforever@dlfp.org>
 
 	* fsusage.c: (glibtop_get_fsusage_s): Fixed .block_size on Solaris.
diff --git a/sysdeps/common/mountlist.c b/sysdeps/common/mountlist.c
index 0dc3dc73..30ae0b6b 100644
--- a/sysdeps/common/mountlist.c
+++ b/sysdeps/common/mountlist.c
@@ -547,7 +547,8 @@ static gboolean ignore_mount_entry(const struct mount_entry *me)
 		"binfmt_misc",
 		"supermount",
 		"mntfs",
-		"openpromfs"
+		"openpromfs",
+		"unknown"
 	};
 
 	const char (*i)[12] = &ignored[0];