diff --git a/sorl/thumbnail/engines/convert_engine.py b/sorl/thumbnail/engines/convert_engine.py
index 320148885..2a9dbe6b4 100644
--- a/sorl/thumbnail/engines/convert_engine.py
+++ b/sorl/thumbnail/engines/convert_engine.py
@@ -110,7 +110,8 @@ def is_valid_image(self, raw_data):
 
     def _get_exif_orientation(self, image):
         args = settings.THUMBNAIL_IDENTIFY.split()
-        args.extend(['-format', '%[exif:orientation]', image['source']])
+        image_param = f"{image['source']}[0]"
+        args.extend(["-format", "%[exif:orientation]", image_param])
         p = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         p.wait()
         result = p.stdout.read().strip()