diff --git a/data_type.go b/data_type.go
index f32d44c..89707f3 100644
--- a/data_type.go
+++ b/data_type.go
@@ -29,9 +29,9 @@ const (
 )
 
 const (
-	DataStatusNotFound   = "NOT_FOUND"
-	DataStatusNotIsNil   = "IS_NIL"
-	DataStatusNotIsZero  = "IS_ZERO"
-	DataStatusNotIsEmpty = "IS_EMPTY"
-	DataStatusNotIsFalse = "IS_FALSE"
+	DataStatusNotFound = "NOT_FOUND"
+	DataStatusIsNil    = "IS_NIL"
+	DataStatusIsZero   = "IS_ZERO"
+	DataStatusIsEmpty  = "IS_EMPTY"
+	DataStatusIsFalse  = "IS_FALSE"
 )