diff --git a/src/model/binary.rs b/src/model/binary.rs
index c0b9fbd..ff6ba0b 100644
--- a/src/model/binary.rs
+++ b/src/model/binary.rs
@@ -18,7 +18,7 @@ pub enum BinaryModelFitMethod {
 }
 
 pub struct BinaryModel {
-    storage: Storage,
+    pub storage: Storage,
     last_t: f64,
     win_obs: BinaryModelObservation,
     observations: Vec<Box<dyn Observation>>,