diff --git a/src/record.rs b/src/record.rs
index fec11d3..bad1c6e 100644
--- a/src/record.rs
+++ b/src/record.rs
@@ -66,6 +66,7 @@ impl<'a> ColumnValue<'a> {
         if let ColumnValue::U8(v) = self {
             *v
         } else {
+            println!("{:?}", self);
             unreachable!()
         }
     }