diff --git a/kdumpctl b/kdumpctl
index af24971..fe41ef8 100755
--- a/kdumpctl
+++ b/kdumpctl
@@ -495,14 +495,10 @@ check_fs_modified()
 	fi
 
 	ddebug "_target=$_target _new_fstype=$_new_fstype"
-	if [[ $(expr substr $_new_fstype 1 3) = "nfs" ]];then
-		_new_dev=$_target
-	else
-		_new_dev=$(kdump_get_persistent_dev $_target)
-		if [ -z "$_new_dev" ]; then
-			derror "Get persistent device name failed"
-			return 2
-		fi
+	_new_dev=$(kdump_get_persistent_dev $_target)
+	if [ -z "$_new_dev" ]; then
+		perror "Get persistent device name failed"
+		return 2
 	fi
 
 	_new_mntpoint="$(get_kdump_mntpoint_from_target $_target)"