diff --git a/backend/nfdump.go b/backend/nfdump.go
index ca27db0..cf625a2 100644
--- a/backend/nfdump.go
+++ b/backend/nfdump.go
@@ -69,7 +69,7 @@ type NFDUMPBackend struct {
 }
 
 func (b NFDUMPBackend) ExtractIps(reader io.Reader, ips *ipset.Set) (uint64, error) {
-	cmd := exec.Command("nfdump", "-qr", "-", "-o", "fmt:%sa %da")
+	cmd := exec.Command("nfdump", "-qr", "-", "-o", "fmt:%sa %da", "-6")
 	cmd.Stdin = reader
 	stdout, err := cmd.StdoutPipe()
 	if err != nil {
diff --git a/cmd/version.go b/cmd/version.go
index a9e8869..a1ce330 100644
--- a/cmd/version.go
+++ b/cmd/version.go
@@ -7,7 +7,7 @@ import (
 )
 
 const (
-	VERSION = "0.1.9"
+	VERSION = "0.1.10"
 )
 
 var cmdVersion = &cobra.Command{