diff --git a/docs/TODO b/docs/TODO
index 24bbcd208f..520d0fe25f 100644
--- a/docs/TODO
+++ b/docs/TODO
@@ -149,6 +149,7 @@
  18.12 keep running, read instructions from pipe/socket
  18.13 support metalink in http headers
  18.14 --fail without --location should treat 3xx as a failure
+ 18.15 Introduce --fail-fast to exit on first transfer fail
 
  19. Build
  19.1 roffit
@@ -986,6 +987,14 @@ that doesn't exist on the server, just like --ftp-create-dirs.
  way to implement this is probably to add that new logic in the command line
  tool only and not in the underlying CURLOPT_FAILONERROR logic.
 
+18.15 Introduce --fail-fast to exit on first transfer fail
+
+ curl will transfer all URLs given on the command line one by one but only
+ returns the error code for the last transfer. Transfer failures on the first
+ ones will not be returned as error code etc to the shell. A --fail-fast
+ option would make curl exit and return an error for the first transfer that
+ fails.
+
 
 19. Build