diff --git a/setup.py b/setup.py
index eeff370..89db0b9 100644
--- a/setup.py
+++ b/setup.py
@@ -74,7 +74,7 @@ def has_webp():
         'imread/lib/_png.cpp',
         'imread/lib/_tiff.cpp',
         'imread/lib/_pvrtc.cpp',
-        EXCLUDE_WEBP or 'imread/lib/_webp.cpp']
+        EXCLUDE_WEBP and None or 'imread/lib/_webp.cpp']
     }