diff --git a/docs/handbook/image-file-formats.rst b/docs/handbook/image-file-formats.rst
index 9c2319b44..ac39625a2 100644
--- a/docs/handbook/image-file-formats.rst
+++ b/docs/handbook/image-file-formats.rst
@@ -1127,7 +1127,7 @@ The :py:meth:`~PIL.Image.Image.save` method supports the following options:
 **exact**
     If true, preserve the transparent RGB values. Otherwise, discard
     invisible RGB values for better compression. Defaults to false.
-    Requires LibWebP 0.5.0 or later.
+    Requires libwebp 0.5.0 or later.
 
 **icc_profile**
     The ICC Profile to include in the saved file. Only supported if