diff --git a/doc/v2/dev/doc_en.png b/doc/v2/dev/doc_en.png
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diff --git a/doc/v2/dev/new_layer_cn.rst b/doc/v2/dev/new_layer_cn.rst
index 0ded1c262adad44f4df000ef2933c7b68050f2fc..3115654b2bd87995fa63bb7828fd1b3039aea8cc 100644
--- a/doc/v2/dev/new_layer_cn.rst
+++ b/doc/v2/dev/new_layer_cn.rst
@@ -16,7 +16,7 @@
 
 下图是一个全连接层的示意图。在全连接层中，每个输出节点都连接到所有的输入节点上。
 
-..  image:: FullyConnected.jpg
+..  image:: src/FullyConnected.jpg
     :align: center
     :scale: 60 %
 
diff --git a/doc/v2/dev/new_layer_en.rst b/doc/v2/dev/new_layer_en.rst
index 110a9fb38f890a766bb4480e91feb22d3b0838a5..b05bb45f11eb253dfb87d6283c29ec6689394d22 100644
--- a/doc/v2/dev/new_layer_en.rst
+++ b/doc/v2/dev/new_layer_en.rst
@@ -16,7 +16,7 @@ First we need to derive equations of the *forward* and *backward* part of the la
 
 The illustration of a fully connected layer is shown in the following figure. In a fully connected layer, all output nodes are connected to all the input nodes.
 
-..  image:: FullyConnected.jpg
+..  image:: src/FullyConnected.jpg
     :align: center
     :scale: 60 %
 
diff --git a/doc/v2/dev/FullyConnected.jpg b/doc/v2/dev/src/FullyConnected.jpg
similarity index 100%
rename from doc/v2/dev/FullyConnected.jpg
rename to doc/v2/dev/src/FullyConnected.jpg
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