diff --git a/src/main/java/com/bsmlab/dfx/agent/config/AccessLogConfiguration.java b/src/main/java/com/bsmlab/dfx/agent/config/AccessLogConfiguration.java
index f302e27..e0eb2d0 100644
--- a/src/main/java/com/bsmlab/dfx/agent/config/AccessLogConfiguration.java
+++ b/src/main/java/com/bsmlab/dfx/agent/config/AccessLogConfiguration.java
@@ -32,7 +32,7 @@ public class AccessLogConfiguration implements WebServerFactoryCustomizer<Tomcat
         accessLogValve.setSuffix(".log");
         accessLogValve.setRotatable(true);
         accessLogValve.setRenameOnRotate(true);
-        accessLogValve.setFileDateFormat("yyyy-MM-dd");
+        accessLogValve.setFileDateFormat(".yyyy-MM-dd");
         accessLogValve.setRequestAttributesEnabled(true);
         factory.addContextValves(accessLogValve);
     }
@@ -43,13 +43,15 @@ public class AccessLogConfiguration implements WebServerFactoryCustomizer<Tomcat
     @Scheduled(cron = "0 0 3 * * *")
     public void cleanAccessLog() {
         AgentConfigDto agentConfigDto = this.agentConfigReader.getAgentConfigDto();
-        File logFileDirFile = new File(Paths.get(agentConfigDto.getLogging().getLogDirectory()).toString());
-        File[] files = logFileDirFile.listFiles((dir, name) -> name.startsWith("access."));
+        File logFileDirFile = new File(Paths.get(agentConfigDto.getLogging().getLogDirectory()).toString(), "access");
+        File[] files = logFileDirFile.listFiles((dir, name) -> name.startsWith("access_log"));
         long maxHistory = agentConfigDto.getLogging().getMaxHistory();
         long cutoff = System.currentTimeMillis() - Duration.ofDays(maxHistory).toMillis();
-        for(File file : files) {
-            if(file.lastModified() < cutoff) {
-                file.delete();
+        if (files != null) {
+            for(File file : files) {
+                if(file.lastModified() < cutoff) {
+                    file.deleteOnExit();
+                }
             }
         }
     }