diff --git a/ChangeLog b/ChangeLog
index 17db9da19..5899c1e95 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-23  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/io/lzopio.c (test_header): Fix incorrect memcmp instead of
+	grub_memcmp usage.
+
 2011-10-23  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* util/grub-install.in: Add datarootdir as per automake manual
diff --git a/grub-core/io/lzopio.c b/grub-core/io/lzopio.c
index 02a70f4d8..bd6f8e738 100644
--- a/grub-core/io/lzopio.c
+++ b/grub-core/io/lzopio.c
@@ -397,7 +397,7 @@ test_header (grub_file_t file)
   if (hcheck)
   {
     checksum = grub_cpu_to_be32(checksum);
-    if (memcmp(&checksum, hcheck->read(context), sizeof(checksum)) != 0)
+    if (grub_memcmp (&checksum, hcheck->read(context), sizeof(checksum)) != 0)
       goto CORRUPTED;
   }