diff --git a/src/plugin/file_split.rs b/src/plugin/file_split.rs
index 29ed0b5..dda07be 100644
--- a/src/plugin/file_split.rs
+++ b/src/plugin/file_split.rs
@@ -158,6 +158,7 @@ impl SplitFile for RawFile {
 pub enum PackType {
     ByDate(DateTime),
     BySize(LogSize),
+    ByCanPack(Box<dyn CanPack>),
 }
 
 impl CanPack for PackType {
@@ -180,6 +181,9 @@ impl CanPack for PackType {
                     None
                 }
             }
+            PackType::ByCanPack(c) => {
+                c.is_pack(_appender, temp_name, temp_size, arg)
+            }
         };
     }
 }