diff --git a/services/backup_sa/src/module_ipc/svc_session_manager.cpp b/services/backup_sa/src/module_ipc/svc_session_manager.cpp
index 892f1398a32996c50e44c050e1d54af317ce8356..66564295c78995648b31fb84a7bab480c5c6865d 100644
--- a/services/backup_sa/src/module_ipc/svc_session_manager.cpp
+++ b/services/backup_sa/src/module_ipc/svc_session_manager.cpp
@@ -580,7 +580,7 @@ uint32_t SvcSessionManager::CalAppProcessTime(const std::string &bundleName)
 
     try {
         stat = StorageMgrAdapter::GetBundleStats(bundleName);
-        appSize = (stat.appSize_ + stat.dataSize_);
+        appSize = static_cast<uint64_t>(stat.appSize_ + stat.dataSize_);
         /* % UINT_MAX force conver uint64 to uint32 */
         /* timeout = (AppSize / 3Ms) * 3 + 30 */
         timeout = (uint32_t)(defaultTimeout + (appSize / processRate) * multiple % UINT_MAX);
diff --git a/tools/backup_tool/src/main.cpp b/tools/backup_tool/src/main.cpp
index ae8d71131e59ef3041610112c5ab974609d0a13c..fbc64eaf50d070663d3b3af86ea9d24c77b6400f 100644
--- a/tools/backup_tool/src/main.cpp
+++ b/tools/backup_tool/src/main.cpp
@@ -64,7 +64,7 @@ optional<map<string, vector<string>>> GetArgsMap(int argc, char *const argv[], c
     return mapArgToVals;
 }
 
-int ParseOpAndExecute(int argc, char *const argv[])
+int ParseOpAndExecute(const int argc, char *const argv[])
 {
     int flag = -1;
     for (int i = 1; i < argc; i++) {
@@ -96,4 +96,4 @@ int ParseOpAndExecute(int argc, char *const argv[])
 int main(int argc, char *const argv[])
 {
     return OHOS::FileManagement::Backup::ParseOpAndExecute(argc, argv);
-}
\ No newline at end of file
+}