diff --git a/src/main/java/org/codelibs/fess/app/web/admin/labeltype/CreateForm.java b/src/main/java/org/codelibs/fess/app/web/admin/labeltype/CreateForm.java
index 376113ae2..159f8d6a1 100644
--- a/src/main/java/org/codelibs/fess/app/web/admin/labeltype/CreateForm.java
+++ b/src/main/java/org/codelibs/fess/app/web/admin/labeltype/CreateForm.java
@@ -41,7 +41,7 @@ public class CreateForm {
     public String name;
 
     @Required
-    @Size(max = 20)
+    @Size(max = 100)
     @Pattern(regexp = "^[a-zA-Z0-9_]+$")
     public String value;