diff --git a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Car.java b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Car.java
index ede56bd02e..455407a92b 100644
--- a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Car.java
+++ b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Car.java
@@ -7,7 +7,7 @@ import org.neo4j.ogm.annotation.Relationship;
 
 @NodeEntity
 public class Car {
-	@Id @GeneratedValue
+    @Id @GeneratedValue
     private Long id;
 
     private String make;
diff --git a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Movie.java b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Movie.java
index 288a261597..996a661b07 100644
--- a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Movie.java
+++ b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Movie.java
@@ -15,7 +15,7 @@ import java.util.List;
 
 @NodeEntity
 public class Movie {
-	@Id @GeneratedValue
+    @Id @GeneratedValue
     Long id;
 
     private String title;
diff --git a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Person.java b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Person.java
index 10add9ad44..453ca1c3f3 100644
--- a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Person.java
+++ b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Person.java
@@ -13,7 +13,7 @@ import java.util.List;
 @JsonIdentityInfo(generator = JSOGGenerator.class)
 @NodeEntity
 public class Person {
-	@Id @GeneratedValue
+    @Id @GeneratedValue
     Long id;
 
     private String name;
diff --git a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Role.java b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Role.java
index b0aed6026e..5a18837dae 100644
--- a/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Role.java
+++ b/persistence-modules/spring-data-neo4j/src/main/java/com/baeldung/spring/data/neo4j/domain/Role.java
@@ -13,7 +13,7 @@ import java.util.Collection;
 @JsonIdentityInfo(generator = JSOGGenerator.class)
 @RelationshipEntity(type = "ACTED_IN")
 public class Role {
-	@Id @GeneratedValue
+    @Id @GeneratedValue
 	Long id;
     private Collection<String> roles;
     @StartNode
diff --git a/persistence-modules/spring-data-neo4j/src/test/java/com/baeldung/neo4j/Neo4jOgmLiveTest.java b/persistence-modules/spring-data-neo4j/src/test/java/com/baeldung/neo4j/Neo4jOgmLiveTest.java
index 1724361324..96e5e76402 100644
--- a/persistence-modules/spring-data-neo4j/src/test/java/com/baeldung/neo4j/Neo4jOgmLiveTest.java
+++ b/persistence-modules/spring-data-neo4j/src/test/java/com/baeldung/neo4j/Neo4jOgmLiveTest.java
@@ -17,7 +17,7 @@ public class Neo4jOgmLiveTest {
 
     @Test
     public void testOgm() {
-        Configuration conf =new Configuration.Builder().build();
+        Configuration conf = new Configuration.Builder().build();
 
         SessionFactory factory = new SessionFactory(conf, "com.baeldung.spring.data.neo4j.domain");
         Session session = factory.openSession();