diff --git a/slurry/sections/_producers.py b/slurry/sections/_producers.py
index 9636840..1f1272c 100644
--- a/slurry/sections/_producers.py
+++ b/slurry/sections/_producers.py
@@ -119,6 +119,8 @@ class InsertValue(TrioSection):
     """Inserts a single user supplied value into the pipeline on startup and then
     passes through any further received items unmodified.
 
+    If no input is used, the single value will be sent, and InsertValue will close.
+
     :param value: Item to send on startup.
     :type value: Any
     """