diff --git a/schema/p2p_schema.go b/schema/p2p_schema.go
index e3147cd..20e13f7 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   interface{} `json:"env,omitempty"`
 }
diff --git a/schema/p2p_schema_test.go b/schema/p2p_schema_test.go
index 96bc9cf..8ceffdb 100644
--- a/schema/p2p_schema_test.go
+++ b/schema/p2p_schema_test.go
@@ -178,4 +178,22 @@ auto:
 			Expect(config.IsValid()).To(BeTrue())
 		})
 	})
+
+	Context("vpn", func() {
+		BeforeEach(func() {
+			yaml = `#cloud-config
+network_token: "b3RwOgogIGRoYWdlX3NpemU6IDIwOTcxNTIwCg=="
+auto:
+  enable: true
+  ha:
+    enable: true
+vpn:
+  env:
+    DCHP: "true"`
+		})
+
+		It("succeedes", func() {
+			Expect(config.IsValid()).To(BeTrue())
+		})
+	})
 })