diff --git a/README.md b/README.md
index 278ae29..f59cf3e 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ tar zcvf categraf.tar.gz categraf conf
 - []http_response
 - []scrape
 - []procstat
-- []oracle
+- [x]oracle
 - []mysql
 - []redis
 - []...
\ No newline at end of file
diff --git a/inputs/oracle/oracle.go b/inputs/oracle/oracle.go
index 838ec42..b051f2a 100644
--- a/inputs/oracle/oracle.go
+++ b/inputs/oracle/oracle.go
@@ -131,7 +131,7 @@ func (o *Oracle) collectOnce(wg *sync.WaitGroup, ins OrclInstance, slist *list.S
 
 	if err := db.Ping(); err != nil {
 		slist.PushFront(inputs.NewSample("up", 0, tags))
-		log.Println("failed to ping oracle:", ins.Address, "error:", err)
+		log.Println("E! failed to ping oracle:", ins.Address, "error:", err)
 	} else {
 		slist.PushFront(inputs.NewSample("up", 1, tags))
 	}