diff --git a/Service/Core/BeWoServerPathHelper.cs b/Service/Core/BeWoServerPathHelper.cs
index 91e32ae0b..90c9bc500 100644
--- a/Service/Core/BeWoServerPathHelper.cs
+++ b/Service/Core/BeWoServerPathHelper.cs
@@ -18,14 +18,14 @@ namespace BeWo.Service.Core
 			var folder_path = Path.Combine(getLogRootPath(), "ai", "requests");
 			Directory.CreateDirectory(folder_path);
 
-			var file_name = getUniqueFileName(folder_path, $"{DateTime.Now:yyyy.MM.dd HH_mm_ss}", 20);
+			var file_name = getUniqueFileName(folder_path, $"{DateTime.Now:yyyy.MM.dd-HH_mm_ss}", 20);
 
 			if (file_name == null)
 				return null;
 
-			id = SecurityUtils.CreateRandomString(10);
+			id = SecurityUtils.CreateRandomString(10, true, true);
 
-			return Path.Combine(folder_path, $"{file_name}_{id}.log");
+			return Path.Combine(folder_path, $"{file_name}-{id}.log");
 		}
 
 		public static string GetServiceLogFile()