diff --git a/Makefile b/Makefile
index e0767e2..b5787f9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,4 @@
 repl:
 	gradle compileJava && rlwrap java -cp build/classes/java/main/ serene.simple.Main
+docs:
+	npx docco src/**/*.java
diff --git a/src/main/java/serene/simple/ListNode.java b/src/main/java/serene/simple/ListNode.java
index 8f1da6c..203f2a2 100644
--- a/src/main/java/serene/simple/ListNode.java
+++ b/src/main/java/serene/simple/ListNode.java
@@ -89,14 +89,14 @@ public class ListNode<T extends Node> extends Node implements Iterable<T> {
       return this.evalInteropProperty(
         scope,
         target,
-        mName.substring(1, firstElement.name.length()));
+        mName.substring(1, mName.length()));
     }
 
     try {
-      System.out.println(target.getClass().getName());
       Method f = target.getClass().getMethod(mName);
       return f.invoke(target, rest.toArray());
     }
+
     catch(NoSuchMethodException e) {
       throw new SereneException(
         String.format(
@@ -119,8 +119,9 @@ public class ListNode<T extends Node> extends Node implements Iterable<T> {
 
   public Object evalInteropProperty(BaseScope scope, Object target, String propertyName)
     throws SereneException {
+
     try {
-      Class<?> targetClass = target.getClass();
+      Class<?> targetClass = this.getClassOf(target);
       return targetClass.getField(propertyName);
     }
     catch(NoSuchFieldException e) {
@@ -186,4 +187,12 @@ public class ListNode<T extends Node> extends Node implements Iterable<T> {
 
     return output + ")";
   }
+
+  private Class<?> getClassOf(Object target) {
+      if (target instanceof Class) {
+        return (Class<?>) target;
+      }
+
+      return target.getClass();
+  }
 }
diff --git a/src/main/java/serene/simple/RootScope.java b/src/main/java/serene/simple/RootScope.java
index 65b0e6f..8c95eec 100644
--- a/src/main/java/serene/simple/RootScope.java
+++ b/src/main/java/serene/simple/RootScope.java
@@ -12,6 +12,9 @@ public class RootScope extends BaseScope {
       put("println", new PrintlnFn());
       put("quit", new QuitFn());
       put("+", new PlusFn());
+      put("System", System.class);
+      put("Boolean", Boolean.class);
+      put("String", String.class);
     }};
     // "+", PlusFn,
     // "-", MinusFn,