diff --git a/src/interpreter/mod.rs b/src/interpreter/mod.rs
index 3bb2ed3..1232186 100644
--- a/src/interpreter/mod.rs
+++ b/src/interpreter/mod.rs
@@ -48,6 +48,8 @@ impl Interpreter {
         //let rhei_ctx = RheiContext::new(&rhei_scripts);
         //rhei_ctx.initialize(&mut variables);
 
+        stylesheet.build_index();
+
         Ok(Document { roots, components, variables, rhei_scripts, stylesheet, interner: Interner::new(), tracker })
     }