diff --git a/internal/theme/repository/fs/fs_theme.go b/internal/theme/repository/fs/fs_theme.go
index 6110ce6..02cd6ac 100644
--- a/internal/theme/repository/fs/fs_theme.go
+++ b/internal/theme/repository/fs/fs_theme.go
@@ -2,9 +2,11 @@ package fs
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"html/template"
 	"io/fs"
+	"reflect"
 
 	"source.toby3d.me/toby3d/home/internal/theme"
 )
@@ -13,6 +15,21 @@ type fileSystemThemeRepository struct {
 	dir fs.FS
 }
 
+var ErrSafeHTML error = errors.New("unsupported input type for SafeHTML")
+
+var helpers = template.FuncMap{
+	"safeHTML": func(v reflect.Value) (template.HTML, error) {
+		switch v.Kind() {
+		default:
+			return "", ErrSafeHTML
+		case reflect.Slice:
+			return template.HTML(v.Bytes()), nil
+		case reflect.String:
+			return template.HTML(v.String()), nil
+		}
+	},
+}
+
 func NewFileSystemThemeRepository(dir fs.FS) theme.Repository {
 	return &fileSystemThemeRepository{
 		dir: dir,
@@ -20,9 +37,9 @@ func NewFileSystemThemeRepository(dir fs.FS) theme.Repository {
 }
 
 func (repo *fileSystemThemeRepository) Get(ctx context.Context) (*template.Template, error) {
-	tpl, err := template.New("").ParseFS(repo.dir, "baseof.html", "single.html")
+	tpl, err := template.New("").Funcs(helpers).ParseFS(repo.dir, "baseof.html", "single.html")
 	if err != nil {
-		return nil, fmt.Errorf("cannot find baseof.html: %w", err)
+		return nil, fmt.Errorf("cannot find baseof template: %w", err)
 	}
 
 	return tpl, nil