diff --git a/ChangeLog b/ChangeLog
index 052fd1e27..34a092ca2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-10-16  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/commands/acpihalt.c (get_sleep_type): Accept \_S5_ as
+	synonym to _S5_. Needed for some DSDTs.
+
 2010-10-16  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Userspace ACPI parser debugging.
diff --git a/grub-core/commands/acpihalt.c b/grub-core/commands/acpihalt.c
index 1e42f447f..d28a74323 100644
--- a/grub-core/commands/acpihalt.c
+++ b/grub-core/commands/acpihalt.c
@@ -175,11 +175,12 @@ get_sleep_type (grub_uint8_t *table, grub_uint8_t *end)
 	  break;
 	case GRUB_ACPI_OPCODE_NAME:
 	  ptr++;
-	  if (memcmp (ptr, "_S5_", 4) == 0)
+	  if (memcmp (ptr, "_S5_", 4) == 0 || memcmp (ptr, "\\_S5_", 4) == 0)
 	    {
 	      int ll;
 	      grub_uint8_t *ptr2 = ptr;
-	      ptr2 += 4;
+	      grub_dprintf ("acpi", "S5 found\n");
+	      ptr2 += skip_name_string (ptr, end);
 	      if (*ptr2 != 0x12)
 		{
 		  grub_printf ("Unknown opcode in _S5: 0x%x\n", *ptr2);