diff --git a/src/PIL/TiffImagePlugin.py b/src/PIL/TiffImagePlugin.py
index 7f596b9ed..ab53483c5 100644
--- a/src/PIL/TiffImagePlugin.py
+++ b/src/PIL/TiffImagePlugin.py
@@ -327,8 +327,6 @@ class IFDRational(Rational):
 
         if denominator == 0:
             self._val = float("nan")
-            return
-
         elif denominator == 1:
             self._val = Fraction(value)
         else: