diff --git a/goextVersion.go b/goextVersion.go
index 6cf06cb..dc7ca59 100644
--- a/goextVersion.go
+++ b/goextVersion.go
@@ -1,5 +1,5 @@
 package goext
 
-const GoextVersion = "0.0.448"
+const GoextVersion = "0.0.449"
 
-const GoextVersionTimestamp = "2024-05-12T16:45:45+0200"
+const GoextVersionTimestamp = "2024-05-12T16:51:52+0200"
diff --git a/wmo/collection.go b/wmo/collection.go
index b638ac9..8431e3f 100644
--- a/wmo/collection.go
+++ b/wmo/collection.go
@@ -95,7 +95,7 @@ func (c *Coll[TData]) WithUnmarshalHook(fn func(d TData) TData) *Coll[TData] {
 // WithMarshalHook
 // function that is called for every object before writing to DB
 func (c *Coll[TData]) WithMarshalHook(fn func(d TData) TData) *Coll[TData] {
-	c.extraModPipeline = append(c.marshalHooks, fn)
+	c.marshalHooks = append(c.marshalHooks, fn)
 
 	return c
 }