diff --git a/pkg/channels/manager.go b/pkg/channels/manager.go
index 8e72efc5c..07c2ce1e2 100644
--- a/pkg/channels/manager.go
+++ b/pkg/channels/manager.go
@@ -23,7 +23,6 @@ import (
 	"github.com/sipeed/picoclaw/pkg/health"
 	"github.com/sipeed/picoclaw/pkg/logger"
 	"github.com/sipeed/picoclaw/pkg/media"
-	"github.com/sipeed/picoclaw/pkg/utils"
 )
 
 const (
@@ -407,7 +406,7 @@ func (m *Manager) runWorker(ctx context.Context, name string, w *channelWorker)
 				maxLen = mlp.MaxMessageLength()
 			}
 			if maxLen > 0 && len([]rune(msg.Content)) > maxLen {
-				chunks := utils.SplitMessage(msg.Content, maxLen)
+				chunks := SplitMessage(msg.Content, maxLen)
 				for _, chunk := range chunks {
 					chunkMsg := msg
 					chunkMsg.Content = chunk
diff --git a/pkg/utils/message.go b/pkg/channels/split.go
similarity index 99%
rename from pkg/utils/message.go
rename to pkg/channels/split.go
index 52a967f4c..a455c5741 100644
--- a/pkg/utils/message.go
+++ b/pkg/channels/split.go
@@ -1,4 +1,4 @@
-package utils
+package channels
 
 import (
 	"strings"
diff --git a/pkg/utils/message_test.go b/pkg/channels/split_test.go
similarity index 99%
rename from pkg/utils/message_test.go
rename to pkg/channels/split_test.go
index 78e1e2b40..d6356bdb9 100644
--- a/pkg/utils/message_test.go
+++ b/pkg/channels/split_test.go
@@ -1,4 +1,4 @@
-package utils
+package channels
 
 import (
 	"strings"