diff --git a/pkg/mounter/s3fs.go b/pkg/mounter/s3fs.go
index 9649388..88c9fa1 100644
--- a/pkg/mounter/s3fs.go
+++ b/pkg/mounter/s3fs.go
@@ -55,7 +55,7 @@ func (s3fs *s3fsMounter) Mount(source string, target string) error {
 
 func writes3fsPass(pwFileContent string) error {
 	pwFileName := fmt.Sprintf("%s/.passwd-s3fs", os.Getenv("HOME"))
-	pwFile, err := os.OpenFile(pwFileName, os.O_RDWR|os.O_CREATE, 0600)
+	pwFile, err := os.OpenFile(pwFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
 	if err != nil {
 		return err
 	}