diff --git a/ChangeLog b/ChangeLog
index d42bcfd3f..fc4519145 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-02-29  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/loader/i386/xnu.c (grub_xnu_boot): Init fsbfreq to
+	sane value to avoid a spurious warning.
+
 2012-02-29  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* include/grub/dl.h: Switch from APPLE_CC to __APPLE__.
diff --git a/grub-core/loader/i386/xnu.c b/grub-core/loader/i386/xnu.c
index 3db67f80e..7fcb6e11a 100644
--- a/grub-core/loader/i386/xnu.c
+++ b/grub-core/loader/i386/xnu.c
@@ -969,7 +969,7 @@ grub_xnu_boot (void)
   grub_size_t devtreelen;
   int i;
   struct grub_relocator32_state state;
-  grub_uint64_t fsbfreq;
+  grub_uint64_t fsbfreq = 100000000;
   int v2 = (grub_xnu_darwin_version >= 11);
   grub_uint32_t efi_system_table = 0;