diff --git a/storage/innobase/os/os0file.cc b/storage/innobase/os/os0file.cc
index b34dc6708a0..0d6348c75d1 100644
--- a/storage/innobase/os/os0file.cc
+++ b/storage/innobase/os/os0file.cc
@@ -6668,7 +6668,11 @@ os_fusionio_get_sector_size()
 
 		/* Try to write the file with different sector size
 		alignment. */
+#ifdef UNIV_DEBUG_VALGRIND
+		ptr = static_cast<byte*>(ut_zalloc_nokey(2 * MAX_SECTOR_SIZE));
+#else
 		ptr = static_cast<byte*>(ut_malloc_nokey(2 * MAX_SECTOR_SIZE));
+#endif
 
 		while (sector_size <= MAX_SECTOR_SIZE) {
 			block_ptr = static_cast<byte*>(