diff --git a/generate/ipv6_asn.tsv b/generate/ipv6_asn.asset.tsv
similarity index 100%
rename from generate/ipv6_asn.tsv
rename to generate/ipv6_asn.asset.tsv
diff --git a/generate/main.go b/generate/main.go
index 6d9d610..3a262f1 100644
--- a/generate/main.go
+++ b/generate/main.go
@@ -14,7 +14,7 @@ import (
 
 const (
 	pkgName        = "asnutil"
-	ipv6OutputFile = "ipv6_asn_map.go"
+	ipv6OutputFile = "ipv6_asn_map.gen.go"
 	ipv6MapName    = "ipv6CidrToAsnMap"
 )
 
diff --git a/ipv6_asn_map.go b/ipv6_asn_map.gen.go
similarity index 100%
rename from ipv6_asn_map.go
rename to ipv6_asn_map.gen.go