diff --git a/format.go b/format.go
index 48b3fa1..199f6f8 100644
--- a/format.go
+++ b/format.go
@@ -4,12 +4,12 @@ import (
 	"fmt"
 )
 
-const logTemplate = "[%s] %s - %s\n"
+const logTemplate = "[%s] %s : %s - %s\n"
 
 func format(logEvent LogEvent) string {
 	data := logEvent.Ts.Format("2006-01-02 15:04:05")
 	msg := fmt.Sprint(logEvent.Data...)
-	ret := fmt.Sprintf(logTemplate, data, getLogLevelStr(logEvent.Level), msg)
+	ret := fmt.Sprintf(logTemplate, data, logEvent.Category getLogLevelStr(logEvent.Level), msg)
 	return ret
 }