diff --git a/completions/fish/foot.fish b/completions/fish/foot.fish
index de31c547..58ae8f11 100644
--- a/completions/fish/foot.fish
+++ b/completions/fish/foot.fish
@@ -8,6 +8,7 @@ complete -c foot -x -s a -l app-id
 complete -c foot    -s m -l maximized                                                                 -d "start in maximized mode"
 complete -c foot    -s F -l fullscreen                                                                -d "start in fullscreen mode"
 complete -c foot    -s L -l login-shell                                                               -d "start shell as a login shell"
+complete -c foot -F -s D -l working-directory                                                         -d "initial working directory for the client application (CWD)"
 complete -c foot -x -s w -l window-size-pixels                                                        -d "window WIDTHxHEIGHT, in pixels (700x500)"
 complete -c foot -x -s W -l window-size-chars                                                         -d "window WIDTHxHEIGHT, in characters (not set)"
 complete -c foot -F -s s -l server                                                                    -d "run as server; open terminals by running footclient"
diff --git a/completions/fish/footclient.fish b/completions/fish/footclient.fish
index 880aaed7..09dc7305 100644
--- a/completions/fish/footclient.fish
+++ b/completions/fish/footclient.fish
@@ -5,6 +5,7 @@ complete -c footclient -x -s a -l app-id
 complete -c footclient    -s m -l maximized                                                                 -d "start in maximized mode"
 complete -c footclient    -s F -l fullscreen                                                                -d "start in fullscreen mode"
 complete -c footclient    -s L -l login-shell                                                               -d "start shell as a login shell"
+complete -c footclient -F -s D -l working-directory                                                         -d "initial working directory for the client application (CWD)"
 complete -c footclient -x -s w -l window-size-pixels                                                        -d "window WIDTHxHEIGHT, in pixels (700x500)"
 complete -c footclient -x -s W -l window-size-chars                                                         -d "window WIDTHxHEIGHT, in characters (not set)"
 complete -c footclient -F -s s -l server-socket                                                             -d "override the default path to the foot server socket ($XDG_RUNTIME_DIR/foot-$WAYLAND_DISPLAY.sock)"