diff --git a/java-collections-maps-3/src/main/java/com/baeldung/map/identity/IdentityHashMapDemonstrator.java b/java-collections-maps-3/src/main/java/com/baeldung/map/identity/IdentityHashMapDemonstrator.java
index faba9f60f8..3cbe09b93f 100644
--- a/java-collections-maps-3/src/main/java/com/baeldung/map/identity/IdentityHashMapDemonstrator.java
+++ b/java-collections-maps-3/src/main/java/com/baeldung/map/identity/IdentityHashMapDemonstrator.java
@@ -81,10 +81,7 @@ public class IdentityHashMapDemonstrator {
 
         @Override
         public String toString() {
-            return "Book{" +
-                    "title='" + title + '\'' +
-                    ", year=" + year +
-                    '}';
+            return "Book{title='" + title + "', year=" + year + "}";
         }
     }