diff --git a/no-unused-requires.js b/no-unused-requires.js
index 2436bb4..13ba97c 100644
--- a/no-unused-requires.js
+++ b/no-unused-requires.js
@@ -2,25 +2,6 @@
 
 const util = require('./util');
 
-function getName(node) {
-  if (node.type !== 'MemberExpression') {
-    return;
-  }
-  if (node.property.type !== 'Identifier' || node.property.computed) {
-    return;
-  }
-  let objectName;
-  if (node.object.type === 'Identifier' && !node.object.computed) {
-    objectName = node.object.name;
-  } else if (node.object.type === 'MemberExpression' && !node.object.computed) {
-    objectName = getName(node.object);
-  }
-  if (!objectName) {
-    return;
-  }
-  return `${objectName}.${node.property.name}`;
-}
-
 exports.rule = {
   meta: {
     docs: {
@@ -48,20 +29,15 @@ exports.rule = {
           }
 
           const name = arg.value;
-          const ancestors = context.getAncestors();
-          const parent = ancestors[ancestors.length - 1];
-          if (!parent) {
-            return;
-          }
-
           requireStatements[name] = statement;
         }
       },
 
       MemberExpression: function(node) {
-        const name = getName(node);
+        const name = util.getName(node);
         if (name in requireStatements) {
-          const requiredAncestor = context.getAncestors().some(ancestorNode => !!requireStatements[getName(ancestorNode)]);
+          const requiredAncestor = context.getAncestors().some(
+              ancestorNode => !!requireStatements[util.getName(ancestorNode)]);
           if (!requiredAncestor) {
             usedNames[name] = true;
           }
@@ -73,7 +49,8 @@ exports.rule = {
         if (name in requireStatements) {
           const ancestors = context.getAncestors();
           if (ancestors.length && ancestors[0].type === 'MemberExpression') {
-            const requiredAncestor = context.getAncestors().some(ancestorNode => !!requireStatements[getName(ancestorNode)]);
+            const requiredAncestor = ancestors.some(
+                ancestorNode => !!requireStatements[util.getName(ancestorNode)]);
             if (!requiredAncestor) {
               usedNames[name] = true;
             }
diff --git a/util.js b/util.js
index 605a5d7..a7c163b 100644
--- a/util.js
+++ b/util.js
@@ -28,3 +28,22 @@ exports.isRequireExpression = function(node) {
 exports.isRequireStatement = function(node) {
   return isGoogStatement(node, 'require');
 };
+
+var getName = exports.getName = function(node) {
+  if (node.type !== 'MemberExpression') {
+    return;
+  }
+  if (node.property.type !== 'Identifier' || node.property.computed) {
+    return;
+  }
+  let objectName;
+  if (node.object.type === 'Identifier' && !node.object.computed) {
+    objectName = node.object.name;
+  } else if (node.object.type === 'MemberExpression' && !node.object.computed) {
+    objectName = getName(node.object);
+  }
+  if (!objectName) {
+    return;
+  }
+  return `${objectName}.${node.property.name}`;
+};
diff --git a/valid-requires.js b/valid-requires.js
index e98a4e0..3643abc 100644
--- a/valid-requires.js
+++ b/valid-requires.js
@@ -13,13 +13,12 @@ exports.rule = {
     return {
       CallExpression: function(expression) {
         if (util.isRequireExpression(expression)) {
-          const ancestors = context.getAncestors();
-          const parent = ancestors[ancestors.length - 1];
+          const parent = expression.parent;
           if (parent.type !== 'ExpressionStatement') {
             return context.report(expression, 'Expected goog.require() to in an expression statement');
           }
 
-          if (ancestors.length !== 2) {
+          if (parent.parent.type !== 'Program') {
             return context.report(expression, 'Expected goog.require() to be at the top level');
           }