diff --git a/generate/generate.go b/generate/generate.go
index ae66258..2d26796 100644
--- a/generate/generate.go
+++ b/generate/generate.go
@@ -347,8 +347,8 @@ func (this *Generator) generateEncodeValue(typ Type, valueSource, tagSource stri
 	case TypeTableDefined:
 		// KTV: <length: UN> (<key: U16> <tag: Tag> <value>)*
 		nn, err := this.iprintf(
-			"nn, err = encoder.WriteUintN(uint64(%s.CN()), %d)\n",
-			tagSource, len(typ.Fields))
+			"nn, err = encoder.WriteUintN(%d, %s.CN())\n",
+			len(typ.Fields), tagSource)
 		n += nn; if err != nil { return n, err }
 		nn, err = this.generateErrorCheck()
 		n += nn; if err != nil { return n, err }