diff --git a/repo2docker/docker.py b/repo2docker/docker.py
index 76af6d04..483e7770 100644
--- a/repo2docker/docker.py
+++ b/repo2docker/docker.py
@@ -90,9 +90,9 @@ class DockerEngine(ContainerEngine):
 
     def build(
         self,
+        *,
         push=False,
         load=False,
-        *,
         buildargs=None,
         cache_from=None,
         container_limits=None,
diff --git a/repo2docker/engine.py b/repo2docker/engine.py
index 28580ebd..303b38e2 100644
--- a/repo2docker/engine.py
+++ b/repo2docker/engine.py
@@ -212,9 +212,9 @@ class ContainerEngine(LoggingConfigurable):
 
     def build(
         self,
+        *,
         push=False,
         load=False,
-        *,
         buildargs={},
         cache_from=[],
         container_limits={},