diff --git a/src/log.cpp b/src/log.cpp
index 6915540..c0fed03 100644
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -21,7 +21,7 @@ void Log::AddTrans(const Transaction &t) noexcept
 
 const std::string &Log::GetLogs() noexcept
 {
-    if (log_flag.GetChangeState()) //if there are changes
+    if (log_flag.GetChangeState() && data.size()) //if there are changes
     {
         //re-generate snapshot
         //({\"amount\":1,\"from\":\"\",\"time\":1625943626,\"to\":\"\"}, + (2*max_name_size)+10+10) * # of logs) + 1