diff --git a/src/PIL/TiffImagePlugin.py b/src/PIL/TiffImagePlugin.py
index 0230d8988..47185a5e3 100644
--- a/src/PIL/TiffImagePlugin.py
+++ b/src/PIL/TiffImagePlugin.py
@@ -400,6 +400,7 @@ class IFDRational(Rational):
         "floor",
         "round",
     ):
+        # Equivalent to __add__ = _delegate("__add__") etc.
         vars()["__" + op + "__"] = _delegate("__" + op + "__")