diff --git a/docs/api-output.md b/docs/api-output.md
index ed7be0d6..14a495b8 100644
--- a/docs/api-output.md
+++ b/docs/api-output.md
@@ -118,6 +118,8 @@ output profile is provided.
 The default behaviour, when `withMetadata` is not used, is to convert to the device-independent
 sRGB colour space and strip all metadata, including the removal of any ICC profile.
 
+EXIF metadata is unsupported for TIFF output.
+
 ### Parameters
 
 *   `options` **[Object][6]?** 
diff --git a/lib/output.js b/lib/output.js
index c4a23429..a6e7dea9 100644
--- a/lib/output.js
+++ b/lib/output.js
@@ -151,6 +151,8 @@ function toBuffer (options, callback) {
  * The default behaviour, when `withMetadata` is not used, is to convert to the device-independent
  * sRGB colour space and strip all metadata, including the removal of any ICC profile.
  *
+ * EXIF metadata is unsupported for TIFF output.
+ *
  * @example
  * sharp('input.jpg')
  *   .withMetadata()