diff --git a/logs/files.go b/logs/files.go
index 6a0fbd7e..b312041c 100644
--- a/logs/files.go
+++ b/logs/files.go
@@ -17,7 +17,6 @@ package logs
 import (
 	"encoding/json"
 	"time"
-	"fmt"
 )
 
 // A filesLogWriter manages several fileLogWriter