diff --git a/backend/randpic/random_picture.py b/backend/randpic/random_picture.py
index 9d4d7ed..7397156 100644
--- a/backend/randpic/random_picture.py
+++ b/backend/randpic/random_picture.py
@@ -5,13 +5,15 @@ from .models import Picture
 pics=Picture.objects.order_by("?")
 
 def get_random_picture_url():
-    return "https://cdn.clf3.org/tianyi-random/"+pics[0].name+".webp"
+    selected_pic=pics[0]
+    return "https://cdn.clf3.org/tianyi-random/"+selected_pic.name+".webp"
 def get_random_picture_meta():
+    selected_pic=pics[0]
     return {
-        "name":pics[0].name,
-        "url":"https://cdn.clf3.org/tianyi-random/"+pics[0].name+".webp",
-        "description":pics[0].description,
-        "author":pics[0].author,
-        "author_url":pics[0].author_url,
-        "original_url":pics[0].original_url
+        "name":selected_pic.name,
+        "url":"https://cdn.clf3.org/tianyi-random/"+selected_pic.name+".webp",
+        "description":selected_pic.description,
+        "author":selected_pic.author,
+        "author_url":selected_pic.author_url,
+        "original_url":selected_pic.original_url
     }
\ No newline at end of file