diff --git a/brainpy/_src/dynold/synapses/base.py b/brainpy/_src/dynold/synapses/base.py
index 5373b59a3..5bdfc7bbd 100644
--- a/brainpy/_src/dynold/synapses/base.py
+++ b/brainpy/_src/dynold/synapses/base.py
@@ -303,7 +303,7 @@ def __init__(
 
     # synaptic communications
     if isinstance(conn, All2All):
-      self.comm = linear.AllToAll(pre.num, post.num, g_max)
+      self.comm = linear.AllToAll(pre.num, post.num, g_max, include_self=conn.include_self)
     elif isinstance(conn, One2One):
       assert post.num == pre.num
       self.comm = linear.OneToOne(pre.num, g_max)
diff --git a/brainpy/_src/dynold/synapses/tests/test_dynold_base_synapse.py b/brainpy/_src/dynold/synapses/tests/test_dynold_base_synapse.py
new file mode 100644
index 000000000..9dc755586
--- /dev/null
+++ b/brainpy/_src/dynold/synapses/tests/test_dynold_base_synapse.py
@@ -0,0 +1,12 @@
+
+import unittest
+import brainpy as bp
+
+
+class Test_TwoEndConnAlignPre(unittest.TestCase):
+  def test1(self):
+    E = bp.neurons.HH(size=4)
+    syn = bp.synapses.AMPA(E, E, bp.conn.All2All(include_self=False))
+    self.assertTrue(syn.conn.include_self == syn.comm.include_self)
+
+