diff --git a/frameworks/libs/distributeddb/common/src/log_print.cpp b/frameworks/libs/distributeddb/common/src/log_print.cpp
index 30a0a47ba4c7c6195a2e6d2cea1e355b1ef53b0d..d8919b55bbaf78e2e21ca4349ea7b33a10e413ee 100644
--- a/frameworks/libs/distributeddb/common/src/log_print.cpp
+++ b/frameworks/libs/distributeddb/common/src/log_print.cpp
@@ -91,6 +91,7 @@ void Logger::DeleteInstance()
 {
     std::unique_lock<std::shared_mutex> writeLock(logMutex);
     logHandler.reset();
+    logHandler = nullptr;
 }
 
 void Logger::Log(Level level, const std::string &tag, const char *func, int line, const char *format, ...)