diff --git a/docs/docs/concepts/pregel.md b/docs/docs/concepts/pregel.md
index 3c8b01cac..5157848db 100644
--- a/docs/docs/concepts/pregel.md
+++ b/docs/docs/concepts/pregel.md
@@ -180,7 +180,7 @@ Below are a few different examples to give you a sense of the Pregel API.
 
     def reducer(current, update):
         if current:
-            return current + " | " + "update"
+            return current + " | " + update
         else:
             return update
 
diff --git a/libs/langgraph/langgraph/pregel/__init__.py b/libs/langgraph/langgraph/pregel/__init__.py
index 0f2ce1233..bcd2f1ce3 100644
--- a/libs/langgraph/langgraph/pregel/__init__.py
+++ b/libs/langgraph/langgraph/pregel/__init__.py
@@ -411,7 +411,7 @@ class Pregel(PregelProtocol):
 
         def reducer(current, update):
             if current:
-                return current + " | " + "update"
+                return current + " | " + update
             else:
                 return update