diff --git a/.gitignore b/.gitignore
index cad0409ccd2c..3cbba4839669 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,7 +29,6 @@
 /dist-assets/sslocal
 /dist-assets/sslocal.exe
 /dist-assets/shell-completions/
-/gui/scripts/mi_proto/
 /windows/**/bin/
 /windows/**/*.user
 /android/keystore.properties
diff --git a/build.sh b/build.sh
index b30e624773e5..efd97ed67e3a 100755
--- a/build.sh
+++ b/build.sh
@@ -217,14 +217,7 @@ pushd "$SCRIPT_DIR/gui"
 
 echo "Installing JavaScript dependencies..."
 
-# Add `--no-optional` flag when running on non-macOS environments because `npm ci` attempts to
-# install optional dependencies that aren't even available on other platforms.
-NPM_CI_ARGS=""
-if [ "$(uname -s)" != "Darwin" ]; then
-    NPM_CI_ARGS+="--no-optional"
-fi
-
-npm ci $NPM_CI_ARGS
+npm ci
 
 ################################################################################
 # Package release.