diff --git a/helper/str_helper.go b/helper/str_helper.go
index 385a130..94d7f0b 100644
--- a/helper/str_helper.go
+++ b/helper/str_helper.go
@@ -187,7 +187,7 @@ func GetCjkRange(code int) string {
 		result = "EXT-I"
 	} else if code == 0x3007 {
 		result = "零"
-	} else if code >= 0x31C0 && code <= 0x631EF {
+	} else if code >= 0x31C0 && code <= 0x31EF {
 		result = "笔画"
 	} else if code >= 0x1F600 && code <= 0x1F64F {
 		result = "表情符号"