diff --git a/rastervision_aws_sagemaker/rastervision/aws_sagemaker/__init__.py b/rastervision_aws_sagemaker/rastervision/aws_sagemaker/__init__.py
index ed29df887..da73a7766 100644
--- a/rastervision_aws_sagemaker/rastervision/aws_sagemaker/__init__.py
+++ b/rastervision_aws_sagemaker/rastervision/aws_sagemaker/__init__.py
@@ -12,6 +12,7 @@ def register_plugin(registry):
         'cpu_inst_type',
         'gpu_image',
         'gpu_inst_type',
+        'use_spot_instances',
     ])