diff --git a/pkg/config/internal_service.go b/pkg/config/internal_service.go
new file mode 100644
index 000000000..c8c49f11b
--- /dev/null
+++ b/pkg/config/internal_service.go
@@ -0,0 +1,8 @@
+package config
+
+// InternalService stores configuration for internal services that don't have
+// any network configuration, but use a wallet and can be enabled/disabled.
+type InternalService struct {
+	Enabled      bool   `yaml:"Enabled"`
+	UnlockWallet Wallet `yaml:"UnlockWallet"`
+}
diff --git a/pkg/config/notary_config.go b/pkg/config/notary_config.go
index 791ed8f86..df4e51187 100644
--- a/pkg/config/notary_config.go
+++ b/pkg/config/notary_config.go
@@ -1,7 +1,4 @@
 package config
 
 // P2PNotary stores configuration for Notary node service.
-type P2PNotary struct {
-	Enabled      bool   `yaml:"Enabled"`
-	UnlockWallet Wallet `yaml:"UnlockWallet"`
-}
+type P2PNotary InternalService
diff --git a/pkg/config/state_root.go b/pkg/config/state_root.go
index 904c104fb..dd44f264d 100644
--- a/pkg/config/state_root.go
+++ b/pkg/config/state_root.go
@@ -1,7 +1,4 @@
 package config
 
 // StateRoot contains state root service configuration.
-type StateRoot struct {
-	Enabled      bool   `yaml:"Enabled"`
-	UnlockWallet Wallet `yaml:"UnlockWallet"`
-}
+type StateRoot InternalService