diff --git a/config/config.go b/config/config.go
index bf9b746..3a3c2bb 100644
--- a/config/config.go
+++ b/config/config.go
@@ -62,7 +62,7 @@ func DefaultConfig() *Config {
 		},
 		Log: Log{
 			WriteToFile: true,
-			Path:        "ttrace.log",
+			Path:        "log.ttrace",
 		},
 		Name: "time_trace",
 	}
diff --git a/config/config.yaml b/config/config.yaml
index 4dfaf2a..eec4b0e 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -6,7 +6,7 @@ server:
 
 log:
   write_to_file: true
-  path: ttrace.log
+  path: log.ttrace
 
 users:
 - name: root
diff --git a/doc/config/config.md b/doc/config/config.md
index f8c992d..2bdcaf3 100644
--- a/doc/config/config.md
+++ b/doc/config/config.md
@@ -37,7 +37,7 @@ How it looks in `config.yaml`:
 ```yml
 log:
   write_to_file: true
-  path: ttrace.log
+  path: log.ttrace
 ```
 
 #### users