diff --git a/bi/case.js b/bi/case.js
index 3c9e1d261d..01db5616b7 100644
--- a/bi/case.js
+++ b/bi/case.js
@@ -11346,10 +11346,8 @@ BI.SelectTextTrigger = BI.inherit(BI.Trigger, {
         });
 
         if (result.length > 0) {
-            this.trigger.element.removeClass("bi-water-mark");
             this.trigger.setText(result.join(","));
         } else {
-            this.trigger.element.addClass("bi-water-mark");
             this.trigger.setText(o.text);
         }
     },
diff --git a/docs/case.js b/docs/case.js
index 3c9e1d261d..01db5616b7 100644
--- a/docs/case.js
+++ b/docs/case.js
@@ -11346,10 +11346,8 @@ BI.SelectTextTrigger = BI.inherit(BI.Trigger, {
         });
 
         if (result.length > 0) {
-            this.trigger.element.removeClass("bi-water-mark");
             this.trigger.setText(result.join(","));
         } else {
-            this.trigger.element.addClass("bi-water-mark");
             this.trigger.setText(o.text);
         }
     },
diff --git a/src/case/trigger/trigger.text.select.js b/src/case/trigger/trigger.text.select.js
index 6f4c2f90b8..5f66a31abf 100644
--- a/src/case/trigger/trigger.text.select.js
+++ b/src/case/trigger/trigger.text.select.js
@@ -40,10 +40,8 @@ BI.SelectTextTrigger = BI.inherit(BI.Trigger, {
         });
 
         if (result.length > 0) {
-            this.trigger.element.removeClass("bi-water-mark");
             this.trigger.setText(result.join(","));
         } else {
-            this.trigger.element.addClass("bi-water-mark");
             this.trigger.setText(o.text);
         }
     },