diff --git a/internal/offline_download/aria2/aria2.go b/internal/offline_download/aria2/aria2.go
index ea6404a6..d22b32f9 100644
--- a/internal/offline_download/aria2/aria2.go
+++ b/internal/offline_download/aria2/aria2.go
@@ -3,10 +3,11 @@ package aria2
 import (
 	"context"
 	"fmt"
-	"github.com/alist-org/alist/v3/internal/errs"
 	"strconv"
 	"time"
 
+	"github.com/alist-org/alist/v3/internal/errs"
+
 	"github.com/alist-org/alist/v3/internal/conf"
 	"github.com/alist-org/alist/v3/internal/model"
 	"github.com/alist-org/alist/v3/internal/offline_download/tool"
diff --git a/internal/offline_download/tool/download.go b/internal/offline_download/tool/download.go
index 975530e7..f0a5d5d4 100644
--- a/internal/offline_download/tool/download.go
+++ b/internal/offline_download/tool/download.go
@@ -2,13 +2,14 @@ package tool
 
 import (
 	"fmt"
+	"time"
+
 	"github.com/alist-org/alist/v3/internal/conf"
 	"github.com/alist-org/alist/v3/internal/errs"
 	"github.com/alist-org/alist/v3/internal/setting"
 	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
 	"github.com/xhofe/tache"
-	"time"
 )
 
 type DownloadTask struct {
diff --git a/server/handles/task.go b/server/handles/task.go
index 9c9486b9..a8b4d21b 100644
--- a/server/handles/task.go
+++ b/server/handles/task.go
@@ -1,6 +1,8 @@
 package handles
 
 import (
+	"math"
+
 	"github.com/alist-org/alist/v3/internal/fs"
 	"github.com/alist-org/alist/v3/internal/offline_download/tool"
 	"github.com/alist-org/alist/v3/pkg/utils"
@@ -23,12 +25,17 @@ func getTaskInfo[T tache.TaskWithInfo](task T) TaskInfo {
 	if task.GetErr() != nil {
 		errMsg = task.GetErr().Error()
 	}
+	progress := task.GetProgress()
+	// if progress is NaN, set it to 100
+	if math.IsNaN(progress) {
+		progress = 100
+	}
 	return TaskInfo{
 		ID:       task.GetID(),
 		Name:     task.GetName(),
 		State:    task.GetState(),
 		Status:   task.GetStatus(),
-		Progress: task.GetProgress(),
+		Progress: progress,
 		Error:    errMsg,
 	}
 }