diff --git a/crates/vim/src/normal/substitute.rs b/crates/vim/src/normal/substitute.rs
index e208983b1161ea0b993979aa298ea50516e56d55..87648f8b882abdf23a65a666245f39af25c3060f 100644
--- a/crates/vim/src/normal/substitute.rs
+++ b/crates/vim/src/normal/substitute.rs
@@ -3,7 +3,7 @@ use language::Point;
 
 use crate::{motion::Motion, Mode, Vim};
 
-pub fn substitute(vim: &mut Vim, count: usize, cx: &mut WindowContext) {
+pub fn substitute(vim: &mut Vim, count: Option<usize>, cx: &mut WindowContext) {
     vim.update_active_editor(cx, |editor, cx| {
         editor.set_clip_at_line_ends(false, cx);
         editor.change_selections(None, cx, |s| {