diff --git a/src/main/java/com/eactive/ext/kjb/safedb/SafeDBWrapper.java b/src/main/java/com/eactive/ext/kjb/safedb/SafeDBWrapper.java
index 7f2b817..929dad8 100644
--- a/src/main/java/com/eactive/ext/kjb/safedb/SafeDBWrapper.java
+++ b/src/main/java/com/eactive/ext/kjb/safedb/SafeDBWrapper.java
@@ -138,6 +138,6 @@ public class SafeDBWrapper extends SafeDBBroker {
     }
 
     public String decryptNotRnno(String data) throws SafeDBWrapperSdkException {
-        return new String(this.decrypt("SAFEDB", "SAFEDB.POLICY", "NOT_RNNO", data));
+        return this.decryptString("SAFEDB", "SAFEDB.POLICY", "NOT_RNNO", data);
     }
 }