diff --git a/storage/myisam/myisamchk.c b/storage/myisam/myisamchk.c
index a1ba6737f50a0683af0b9d6de5dbc0cbc1f001ec..66b6b9c5fae5c3a9bb42c6ed8399faf55283f8eb 100644
--- a/storage/myisam/myisamchk.c
+++ b/storage/myisam/myisamchk.c
@@ -295,7 +295,14 @@ static struct my_option my_long_options[] =
     &check_param.write_buffer_length, 0, GET_ULONG, REQUIRED_ARG,
     (long) READ_BUFFER_INIT, (long) MALLOC_OVERHEAD,
     INT_MAX32, (long) MALLOC_OVERHEAD, (long) 1L, 0},
-  { "sort_buffer_size", OPT_SORT_BUFFER_SIZE, "",
+  { "sort_buffer_size", OPT_SORT_BUFFER_SIZE,
+    "Deprecated. myisam_sort_buffer_size alias is being used",
+    &check_param.sort_buffer_length,
+    &check_param.sort_buffer_length, 0, GET_ULL, REQUIRED_ARG,
+    (long) SORT_BUFFER_INIT, (long) (MIN_SORT_BUFFER + MALLOC_OVERHEAD),
+    SIZE_T_MAX, (long) MALLOC_OVERHEAD, (long) 1L, 0},
+  { "myisam_sort_buffer_size", OPT_SORT_BUFFER_SIZE, 
+    "Alias of sort_buffer_size parameter",
     &check_param.sort_buffer_length,
     &check_param.sort_buffer_length, 0, GET_ULL, REQUIRED_ARG,
     (long) SORT_BUFFER_INIT, (long) (MIN_SORT_BUFFER + MALLOC_OVERHEAD),