diff --git a/app/bot.py b/app/bot.py
old mode 100755
new mode 100644
index 48190a40..a62b2242
--- a/app/bot.py
+++ b/app/bot.py
@@ -53,15 +53,18 @@ async def fix_cdn_url(ctx):
 @bot.listen("on_message")
 async def convert_heic_to_jpg(ctx):
     from cmagick import cmagick
+    import time
+    import tempfile
 
     if ctx.attachments:
         for attachment in ctx.attachments:
             if attachment.filename.lower().endswith(("heic", "tiff")):
                 source_file = "/tmp/source"
-                jpg_file = "/tmp/converted.jpg"
-                await attachment.save(fp=source_file)
+                source_file, file_path = tempfile.mkstemp()
+                jpg_file = "/tmp/%s.jpg" % time.time()
+                await attachment.save(fp=file_path)
 
-                img = cmagick.convert(source_file, jpg_file)
+                img = cmagick.convert(file_path, jpg_file)
 
                 try:
                     await ctx.delete()