diff --git a/cli/htmgo/internal/dirutil/dir.go b/cli/htmgo/internal/dirutil/dir.go
index 7ebd838..97ba191 100644
--- a/cli/htmgo/internal/dirutil/dir.go
+++ b/cli/htmgo/internal/dirutil/dir.go
@@ -52,6 +52,21 @@ func CopyDir(srcDir, dstDir string, predicate func(path string, exists bool) boo
 	})
 }
 
+func MoveFile(src, dst string) error {
+	slog.Debug("moving file", slog.String("src", src), slog.String("dst", dst))
+	// Copy the file.
+	err := CopyFile(src, dst)
+	if err != nil {
+		return fmt.Errorf("failed to copy file: %v", err)
+	}
+	// Remove the source file.
+	err = os.Remove(src)
+	if err != nil {
+		return fmt.Errorf("failed to remove source file: %v", err)
+	}
+	return nil
+}
+
 func CopyFile(src, dst string) error {
 	slog.Debug("copying file", slog.String("src", src), slog.String("dst", dst))
 	// Open the source file for reading.
diff --git a/cli/htmgo/tasks/css/css.go b/cli/htmgo/tasks/css/css.go
index 767cf26..f43f258 100644
--- a/cli/htmgo/tasks/css/css.go
+++ b/cli/htmgo/tasks/css/css.go
@@ -82,15 +82,15 @@ func downloadTailwindCli() {
 	if os == "windows" {
 		process.RunMany([]string{
 			fmt.Sprintf(`curl -LO %s`, url),
-			fmt.Sprintf(`mv %s ./__htmgo/tailwind`, fileName),
 		}, process.ExitOnError)
 	} else {
 		process.RunMany([]string{
 			fmt.Sprintf(`curl -LO %s`, url),
 			fmt.Sprintf(`chmod +x %s`, fileName),
-			fmt.Sprintf(`mv %s ./__htmgo/tailwind`, fileName),
 		}, process.ExitOnError)
 	}
 
+	dirutil.MoveFile(fileName, "./__htmgo/tailwind")
+
 	slog.Debug("Successfully downloaded Tailwind CLI", slog.String("url", url))
 }