diff --git a/doc/design/csp.md b/doc/design/csp.md
index ae2e3e1b998f949b5ca34707fa598725ef9fcbfd..10d936860fab7e09241e968a63526c7d86d3e568 100644
--- a/doc/design/csp.md
+++ b/doc/design/csp.md
@@ -144,8 +144,9 @@ ch = fluid.make_channel(dtype=INT, buffer_size)
 # Now write three elements to the channel
 with fluid.while(steps=buffer_size):
   fluid.send(ch, step)
-  fluid.close_channel(ch)
-  
+
+fluid.close_channel(ch)
+
 with fluid.while(steps=buffer_size):
   fluid.print(fluid.recv(ch))
 ```