diff --git a/node/config/def_test.go b/node/config/def_test.go
index adbb44b60..0ad0c8f2a 100644
--- a/node/config/def_test.go
+++ b/node/config/def_test.go
@@ -10,6 +10,8 @@ import (
 
 	"github.com/BurntSushi/toml"
 	"github.com/stretchr/testify/require"
+
+	"github.com/filecoin-project/lotus/node/config"
 )
 
 func TestDefaultFullNodeRoundtrip(t *testing.T) {
@@ -71,6 +73,10 @@ func TestDefaultMinerRoundtrip(t *testing.T) {
 
 	fmt.Println(s)
 
+	// Differs between test envs
+	c.HarmonyDB = config.HarmonyDB{}
+	c2.(*StorageMiner).HarmonyDB = config.HarmonyDB{}
+
 	fmt.Println(c)
 	fmt.Println(c2)
 	require.True(t, reflect.DeepEqual(c, c2))
diff --git a/node/config/types.go b/node/config/types.go
index 47f227b91..ac266e089 100644
--- a/node/config/types.go
+++ b/node/config/types.go
@@ -67,14 +67,18 @@ type StorageMiner struct {
 }
 
 type LotusProviderConfig struct {
-	EnableWindowPost  bool
-	EnableWinningPost bool
+	Subsystems ProviderSubsystemsConfig
 
 	Fees      LotusProviderFees
 	Addresses LotusProviderAddresses
 	Proving   ProvingConfig
 }
 
+type ProviderSubsystemsConfig struct {
+	EnableWindowPost  bool
+	EnableWinningPost bool
+}
+
 type DAGStoreConfig struct {
 	// Path to the dagstore root directory. This directory contains three
 	// subdirectories, which can be symlinked to alternative locations if