diff --git a/pkg/definitions/config.go b/pkg/definitions/config.go
index 2324303..4ff08e2 100644
--- a/pkg/definitions/config.go
+++ b/pkg/definitions/config.go
@@ -1,8 +1,7 @@
 package definitions
 
 type Config struct {
-	ConfigVersion int64     `json:"config_version"`
-	Netfilter     Netfilter `json:"netfilter"`
+	ConfigVersion uint64             `json:"config_version"`
 	Netfilter     Netfilter          `json:"netfilter"`
 	Addresses     map[string]Address `json:"addresses"`
 	Services      map[string]Service `json:"services"`