diff --git a/lib/Service/ModelStore.php b/lib/Service/ModelStore.php
index 389a17c7..58ad52c4 100644
--- a/lib/Service/ModelStore.php
+++ b/lib/Service/ModelStore.php
@@ -162,6 +162,7 @@ public function persist(Learner $estimator, Model $model) {
 				'exception' => $e,
 			]);
 			$this->modelMapper->delete($model);
+			throw $e;
 		}
 	}
 }