diff --git a/lib/compiler.js b/lib/compiler.js
index 4e6934f..e1e1642 100644
--- a/lib/compiler.js
+++ b/lib/compiler.js
@@ -4,6 +4,12 @@ var arrays  = require("./utils/arrays"),
     objects = require("./utils/objects");
 
 var compiler = {
+  /*
+   * AST node visitor builder. Useful mainly for plugins which manipulate the
+   * AST.
+   */
+  visitor: require("./compiler/visitor"),
+
   /*
    * Compiler passes.
    *