diff --git a/src/PIL/TiffImagePlugin.py b/src/PIL/TiffImagePlugin.py
index 953fc2c0f8d..ab5934816ba 100644
--- a/src/PIL/TiffImagePlugin.py
+++ b/src/PIL/TiffImagePlugin.py
@@ -1821,7 +1821,7 @@ def _save(im, fp, filename):
             # IFD offset that may not be correct in the saved image
             EXIFIFD,
             # Determined by the image format and should not be copied from legacy_ifd.
-            SAMPLEFORMAT
+            SAMPLEFORMAT,
         ):
             if tag in supplied_tags:
                 del supplied_tags[tag]