diff --git a/schema/p2p_schema.go b/schema/p2p_schema.go
index 20e13f7..c0fdb8b 100644
--- a/schema/p2p_schema.go
+++ b/schema/p2p_schema.go
@@ -62,7 +62,7 @@ func (P2PNetworkExtended) JSONSchemaOneOf() []interface{} {
 
 // VPN represents the vpn block in the Kairos configuration.
 type VPN struct {
-	Create bool        `json:"vpn,omitempty" default:"true"`
-	Use    bool        `json:"use,omitempty" default:"true"`
-	Envs   interface{} `json:"env,omitempty"`
+	Create bool                   `json:"vpn,omitempty" default:"true"`
+	Use    bool                   `json:"use,omitempty" default:"true"`
+	Envs   map[string]interface{} `json:"env,omitempty"`
 }