diff --git a/pkg/check/df.go b/pkg/check/df.go
index 1575b76..b7e44b1 100644
--- a/pkg/check/df.go
+++ b/pkg/check/df.go
@@ -3,6 +3,7 @@ package check
 import (
 	"fmt"
 	"go/slack-bot/pkg/notify"
+	"log"
 	"regexp"
 	"strconv"
 	"strings"
@@ -83,6 +84,7 @@ func (dc *DfChecker) FileSystemUsedCheck(dfOut DfStdout, param DfParameter) noti
 	message := notify.Message{
 		ShouldNotify: false,
 	}
+	found := false
 	for _, line := range dfOut {
 		if line.Filesystem == param.FileSystemName {
 			if line.PourcentUsed > param.CriticalPourcent {
@@ -92,6 +94,13 @@ func (dc *DfChecker) FileSystemUsedCheck(dfOut DfStdout, param DfParameter) noti
 					ShouldNotify: true,
 				}
 			}
+			found = true
+		}
+	}
+	if !found {
+		message = notify.Message{
+			Content:      fmt.Sprintf("%s : fs '%s' not found\n", dc.alertingMessage, param.FileSystemName),
+			ShouldNotify: true,
 		}
 	}
 	return message