diff --git a/python/jittor/__init__.py b/python/jittor/__init__.py
index 4096a419..4c9f678d 100644
--- a/python/jittor/__init__.py
+++ b/python/jittor/__init__.py
@@ -8,7 +8,7 @@
 # This file is subject to the terms and conditions defined in
 # file 'LICENSE.txt', which is part of this source code package.
 # ***************************************************************
-__version__ = '1.2.2.63'
+__version__ = '1.2.2.64'
 from . import lock
 with lock.lock_scope():
     ori_int = int
diff --git a/src/ops/getitem_op.cc b/src/ops/getitem_op.cc
index 54116775..941c7f3e 100644
--- a/src/ops/getitem_op.cc
+++ b/src/ops/getitem_op.cc
@@ -462,6 +462,9 @@ void GetitemOp::jit_run() {
     auto in = inputs().front();
     auto out = outputs().front();
     if (out->num == 0) return;
+    if (in->allocator == out->allocator &&
+        in->allocation == out->allocation)
+        return;
 
     @for(i, 0, ODIM, index_t oshape@i = o_shape[@i];)
     @if(ODIM>0,