diff --git a/src/SearchPage.js b/src/SearchPage.js
index b78530e..6581f85 100644
--- a/src/SearchPage.js
+++ b/src/SearchPage.js
@@ -15,10 +15,10 @@ class SearchPage extends Component {
     const books = this.props.books
     if (query.length > 3) {
       search(query).then((results) => {
-        for (var i = 0; i < books.length; i++) {
-          for (var j = 0; j < results.length; j++) {
-            if (results[j] === books[i]) {
-              results[j].shelf = books[i].shelf
+        for (var result of results) {
+          for (var book of books) {
+            if (result === book) {
+              result.shelf = book.shelf
             }
           }
         }