diff --git a/install.sh b/install.sh
index 80109ff..c4e68e0 100755
--- a/install.sh
+++ b/install.sh
@@ -181,7 +181,7 @@ resolve_source_dir() {
     if command -v git > /dev/null 2>&1; then
         local git_args=("--depth=1")
         if [[ "$branch" != "main" ]]; then
-             git_args+=("--branch" "$branch")
+            git_args+=("--branch" "$branch")
         fi
 
         if git clone "${git_args[@]}" https://github.com/tw93/mole.git "$tmp/mole" > /dev/null 2>&1; then