diff --git a/src/scripts/darwin.sh b/src/scripts/darwin.sh
index c74f0907..59a97e28 100644
--- a/src/scripts/darwin.sh
+++ b/src/scripts/darwin.sh
@@ -142,10 +142,10 @@ link_libraries() {
 # Patch brew to overwrite packages.
 patch_brew() {
   formula_installer="$brew_repo"/Library/Homebrew/formula_installer.rb
-  code=" keg.link(verbose: verbose?"
-  sudo sed -i '' "s/$code)/$code, overwrite: true)/" "$formula_installer"
+  code=" keg.link\(verbose: verbose\?"
+  sudo sed -Ei '' "s/$code.*/$code, overwrite: true\)/" "$formula_installer"
   # shellcheck disable=SC2064
-  trap "sudo sed -i '' 's/$code, overwrite: true)/$code)/' $formula_installer" exit
+  trap "sudo sed -Ei '' 's/$code.*/$code, overwrite: overwrite?\)/' $formula_installer" exit
 }
 
 # Helper function to update the dependencies.