diff --git a/interfaces/kits/bundle_lite/bundle_manager.h b/interfaces/kits/bundle_lite/bundle_manager.h
index e11f23e..3d1b8ae 100755
--- a/interfaces/kits/bundle_lite/bundle_manager.h
+++ b/interfaces/kits/bundle_lite/bundle_manager.h
@@ -251,7 +251,7 @@ void FreeSystemAvailableCapabilitiesInfo(SystemCapability *sysCap);
  * @brief Get bundle size
  *
  * @param bundleName Indicates the bundle name.
- * @return Returns the bundle size if this function is successfully called; returns 0 otherwise.
+ * @return Returns the bundle size (Byte) if this function is successfully called; returns 0 otherwise.
  *
  * @since 7
  * @version 7
diff --git a/services/bundlemgr_lite/src/bundle_ms_feature.cpp b/services/bundlemgr_lite/src/bundle_ms_feature.cpp
index 9a8c4a2..15af6c1 100755
--- a/services/bundlemgr_lite/src/bundle_ms_feature.cpp
+++ b/services/bundlemgr_lite/src/bundle_ms_feature.cpp
@@ -256,14 +256,14 @@ uint8_t BundleMsFeature::GetInnerBundleSize(const uint8_t funcId, IpcIo *req, Ip
         return ERR_APPEXECFWK_OBJECT_NULL;
     }
     size_t size = 0;
+    uint32_t bundleSize = 0;
     char *bundleName = reinterpret_cast<char *>(IpcIoPopString(req, &size));
     if (bundleName == nullptr) {
-        return ERR_APPEXECFWK_DESERIALIZATION_FAILED;
-    }
-    uint32_t bundleSize = GetBundleSize(bundleName);
-    if (bundleSize == 0) {
-        return ERR_APPEXECFWK_OBJECT_NULL;
+        IpcIoPushUint8(reply, static_cast<uint8_t>(OHOS_SUCCESS));
+        IpcIoPushUint32(reply, bundleSize);
+        return OHOS_SUCCESS;
     }
+    bundleSize = GetBundleSize(bundleName);
     IpcIoPushUint8(reply, static_cast<uint8_t>(OHOS_SUCCESS));
     IpcIoPushUint32(reply, bundleSize);
     return OHOS_SUCCESS;