diff --git a/sonic-android/sdk/src/main/java/com/tencent/sonic/sdk/SonicDataHelper.java b/sonic-android/sdk/src/main/java/com/tencent/sonic/sdk/SonicDataHelper.java
index cea3849..de5999a 100644
--- a/sonic-android/sdk/src/main/java/com/tencent/sonic/sdk/SonicDataHelper.java
+++ b/sonic-android/sdk/src/main/java/com/tencent/sonic/sdk/SonicDataHelper.java
@@ -260,8 +260,15 @@ static boolean setSonicUnavailableTime(String sessionId, long unavailableTime) {
             sessionData.unAvailableTime = unavailableTime;
             updateSessionData(db, sessionId, sessionData);
             return true;
+        } else {
+            sessionData = new SessionData();
+            sessionData.sessionId = sessionId;
+            sessionData.eTag = "Unknown";
+            sessionData.htmlSha1 = "Unknown";
+            sessionData.unAvailableTime = unavailableTime;
+            insertSessionData(db, sessionId, sessionData);
+            return true;
         }
-        return false;
     }
 
     /**