diff --git a/ChangeLog b/ChangeLog
index c975de1c6..ff291774f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2013-01-21  Colin Watson  <cjwatson@ubuntu.com>
+
+	* grub-core/partmap/msdos.c (embed_signatures): Add the signature of
+	an Acer registration utility with several sightings in the wild.
+	Reported by: Rickard Westman.  Fixes Ubuntu bug #987022.
+
 2013-01-21  Colin Watson  <cjwatson@ubuntu.com>
 
 	Remove nested functions from filesystem directory iterators.
diff --git a/grub-core/partmap/msdos.c b/grub-core/partmap/msdos.c
index 47527c317..b0e11c40b 100644
--- a/grub-core/partmap/msdos.c
+++ b/grub-core/partmap/msdos.c
@@ -94,6 +94,13 @@ struct embed_signature embed_signatures[] =
       .signature = "ycgl",
       .signature_len = 4,
       .type = TYPE_RAID
+    },
+    {
+      /* https://bugs.launchpad.net/bugs/987022 */
+      .name = "Acer registration utility (?)",
+      .signature = "GREGRegDone.Tag\x00",
+      .signature_len = 16,
+      .type = TYPE_SOFTWARE
     }
   };
 #endif