diff --git a/ChangeLog b/ChangeLog
index eced79d59..4598e1b74 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2010-01-31  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* disk/ieee1275/ofdisk.c (grub_ofdisk_iterate): Fix off-by-one error.
+
 2010-01-31  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* font/font.c (find_glyph): Check that bmp_idx is available before
diff --git a/disk/ieee1275/ofdisk.c b/disk/ieee1275/ofdisk.c
index c8c4d1a4e..051ece0b9 100644
--- a/disk/ieee1275/ofdisk.c
+++ b/disk/ieee1275/ofdisk.c
@@ -118,7 +118,7 @@ grub_ofdisk_iterate (int (*hook) (const char *name))
 static char *
 compute_dev_path (const char *name)
 {
-  char *devpath = grub_malloc (grub_strlen (name) + 2);
+  char *devpath = grub_malloc (grub_strlen (name) + 3);
   char *p, c;
 
   if (!devpath)