diff --git a/optgbm/sklearn.py b/optgbm/sklearn.py
index 0eb9aa0..4a2f6b3 100644
--- a/optgbm/sklearn.py
+++ b/optgbm/sklearn.py
@@ -638,6 +638,7 @@ def fit(
             feature_name=feature_name,
             categorical_feature=categorical_feature,
             callbacks=callbacks,
+            init_model=init_model,
         )
 
         elapsed_time = time.perf_counter() - start_time