diff --git a/common/config/config.go b/common/config/config.go
index 0864d844..aaa26731 100644
--- a/common/config/config.go
+++ b/common/config/config.go
@@ -144,3 +144,5 @@ var MetricFailChanSize = env.Int("METRIC_FAIL_CHAN_SIZE", 128)
 var InitialRootToken = os.Getenv("INITIAL_ROOT_TOKEN")
 
 var GeminiVersion = env.String("GEMINI_VERSION", "v1")
+
+var OnlyOneLogFile = env.Bool("ONLY_ONE_LOG_FILE", false)
\ No newline at end of file
diff --git a/common/logger/logger.go b/common/logger/logger.go
index c3dcd89d..1df7a5bb 100644
--- a/common/logger/logger.go
+++ b/common/logger/logger.go
@@ -27,7 +27,12 @@ var setupLogOnce sync.Once
 func SetupLogger() {
 	setupLogOnce.Do(func() {
 		if LogDir != "" {
-			logPath := filepath.Join(LogDir, fmt.Sprintf("oneapi-%s.log", time.Now().Format("20060102")))
+			var logPath string
+			if config.OnlyOneLogFile {
+				logPath = filepath.Join(LogDir, "oneapi.log")
+			} else {
+				logPath = filepath.Join(LogDir, fmt.Sprintf("oneapi-%s.log", time.Now().Format("20060102")))
+			}
 			fd, err := os.OpenFile(logPath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
 			if err != nil {
 				log.Fatal("failed to open log file")