diff --git a/setup.py b/setup.py
index 93b5bcc78..b5769b191 100644
--- a/setup.py
+++ b/setup.py
@@ -1080,9 +1080,9 @@ for src_file in _LIB_IMAGING:
     files.append(os.path.join("src/libImaging", src_file + ".c"))
 ext_modules = [
     Extension("PIL._imaging", files),
-    Extension("PIL._imagingft", ["src/_imagingft.c"]),
+    Extension("PIL._imagingft", ["src/_imagingft.c", "src/libImaging/Mode.c"]),
     Extension("PIL._imagingcms", ["src/_imagingcms.c"]),
-    Extension("PIL._webp", ["src/_webp.c"]),
+    Extension("PIL._webp", ["src/_webp.c", "src/libImaging/Mode.c"]),
     Extension("PIL._avif", ["src/_avif.c"]),
     Extension("PIL._imagingtk", ["src/_imagingtk.c", "src/Tk/tkImaging.c"]),
     Extension("PIL._imagingmath", ["src/_imagingmath.c"]),