diff --git a/flagx/commandline.go b/flagx/commandline.go
index f2b2bcf..0bcc0d6 100644
--- a/flagx/commandline.go
+++ b/flagx/commandline.go
@@ -1,7 +1,6 @@
 package flagx
 
 import (
-	"encoding"
 	"flag"
 	"fmt"
 	"os"
@@ -125,9 +124,6 @@ func Duration(name string, value time.Duration, usage string) *time.Duration {
 	return findProperFlagSet(name).Duration(name, value, usage)
 }
 
-func TextVar(p encoding.TextUnmarshaler, name string, value encoding.TextMarshaler, usage string) {
-	findProperFlagSet(name).TextVar(p, name, value, usage)
-}
 func Func(name, usage string, fn func(string) error) {
 	findProperFlagSet(name).Func(name, usage, fn)
 }