diff --git a/model_server/clients/ilastik_map_objects.py b/model_server/clients/ilastik_map_objects.py
index d04a1fbc269d5624ba93e019ec042273b697f878..c7febda3326e3bbb0acb605f405b90d6c2a38777 100644
--- a/model_server/clients/ilastik_map_objects.py
+++ b/model_server/clients/ilastik_map_objects.py
@@ -44,7 +44,7 @@ def main(request_func, in_abspath, params):
 	resp = request_func(
 		'PUT',
 		'/ilastik/seg/load/',
-		{
+		body={
 			'project_file': px_ilp,
 			'duplicate': False,
 		},
@@ -55,7 +55,7 @@ def main(request_func, in_abspath, params):
 	# load object classifier
 	resp = request_func(
 		'PUT', '/ilastik/pxmap_to_obj/load/',
-		{
+		body={
 			'project_file': ob_ilp,
 			'duplicate': False,
 		},
@@ -67,7 +67,7 @@ def main(request_func, in_abspath, params):
 	resp = request_func(
 		'PUT',
 		'/ilastik/pixel_then_object_classification/infer',
-		{
+		body={
 			'px_model_id': id_px_mod,
 			'ob_model_id': id_ob_mod,
 			'input_filename': in_file,