diff --git a/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.java b/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.java
index d17205abe..db86c10d7 100644
--- a/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.java
+++ b/app/src/main/java/com/hippo/ehviewer/spider/SpiderDen.java
@@ -50,13 +50,12 @@ public final class SpiderDen {
     @Nullable
     private static SimpleDiskCache sCache;
     @Nullable
-    private final UniFile mDownloadDir;
+    private UniFile mDownloadDir;
     private final long mGid;
     private volatile int mMode = SpiderQueen.MODE_READ;
 
     public SpiderDen(GalleryInfo galleryInfo) {
         mGid = galleryInfo.gid;
-        mDownloadDir = getGalleryDownloadDir(galleryInfo);
     }
 
     public static void initialize(Context context) {
@@ -156,6 +155,10 @@ public final class SpiderDen {
         return mDownloadDir != null && mDownloadDir.isDirectory() ? mDownloadDir : null;
     }
 
+    public void setDownloadDir(UniFile dir) {
+        mDownloadDir = dir;
+    }
+
     private boolean containInCache(int index) {
         if (sCache == null) {
             return false;
diff --git a/app/src/main/java/com/hippo/ehviewer/spider/SpiderQueen.java b/app/src/main/java/com/hippo/ehviewer/spider/SpiderQueen.java
index c98b1f4dd..5a5cd9f3d 100644
--- a/app/src/main/java/com/hippo/ehviewer/spider/SpiderQueen.java
+++ b/app/src/main/java/com/hippo/ehviewer/spider/SpiderQueen.java
@@ -320,6 +320,9 @@ public final class SpiderQueen implements Runnable {
             mode = MODE_READ;
         }
 
+        if (mode == MODE_DOWNLOAD && mSpiderDen.getDownloadDir() == null) {
+            mSpiderDen.setDownloadDir(SpiderDen.getGalleryDownloadDir(mGalleryInfo));
+        }
         mSpiderDen.setMode(mode);
 
         // Update download page