diff --git a/spring-boot/src/main/java/org/baeldung/boot/DemoApplication.java b/spring-boot/src/main/java/org/baeldung/boot/DemoApplication.java
index 69e78c3fee..e61d140396 100644
--- a/spring-boot/src/main/java/org/baeldung/boot/DemoApplication.java
+++ b/spring-boot/src/main/java/org/baeldung/boot/DemoApplication.java
@@ -6,8 +6,9 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 @SpringBootApplication
 public class DemoApplication {
 
-	public static void main(String[] args) {
-		System.setProperty("spring.config.name", "demo");
-		SpringApplication.run(DemoApplication.class, args);
-	}
+    public static void main(String[] args) {
+        System.setProperty("spring.config.name", "demo");
+        SpringApplication.run(DemoApplication.class, args);
+    }
+
 }
diff --git a/spring-boot/src/main/java/org/baeldung/boot/model/Foo.java b/spring-boot/src/main/java/org/baeldung/boot/model/Foo.java
index 0db0be4db1..6a36459e3c 100644
--- a/spring-boot/src/main/java/org/baeldung/boot/model/Foo.java
+++ b/spring-boot/src/main/java/org/baeldung/boot/model/Foo.java
@@ -8,33 +8,32 @@ import javax.persistence.Id;
 
 @Entity
 public class Foo implements Serializable {
-	private static final long serialVersionUID = 1L;
-	@Id
-	@GeneratedValue
-	private Integer id;
-	private String name;
+    private static final long serialVersionUID = 1L;
+    @Id
+    @GeneratedValue
+    private Integer id;
+    private String name;
 
-	public Foo() {
-	}
+    public Foo() {
+    }
 
-	public Foo(String name) {
-		this.name = name;
-	}
+    public Foo(String name) {
+        this.name = name;
+    }
 
-	public Integer getId() {
-		return id;
-	}
+    public Integer getId() {
+        return id;
+    }
 
-	public void setId(Integer id) {
-		this.id = id;
-	}
+    public void setId(Integer id) {
+        this.id = id;
+    }
 
-	public String getName() {
-		return name;
-	}
-
-	public void setName(String name) {
-		this.name = name;
-	}
+    public String getName() {
+        return name;
+    }
 
+    public void setName(String name) {
+        this.name = name;
+    }
 }
diff --git a/spring-boot/src/main/java/org/baeldung/boot/repository/FooRepository.java b/spring-boot/src/main/java/org/baeldung/boot/repository/FooRepository.java
index de8ce8196d..09d6975dba 100644
--- a/spring-boot/src/main/java/org/baeldung/boot/repository/FooRepository.java
+++ b/spring-boot/src/main/java/org/baeldung/boot/repository/FooRepository.java
@@ -4,5 +4,5 @@ import org.baeldung.boot.model.Foo;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface FooRepository extends JpaRepository<Foo, Integer> {
-	public Foo findByName(String name);
+    public Foo findByName(String name);
 }
diff --git a/spring-boot/src/test/java/org/baeldung/boot/DemoApplicationTests.java b/spring-boot/src/test/java/org/baeldung/boot/DemoApplicationTests.java
index 4e04334238..41c5a545cc 100644
--- a/spring-boot/src/test/java/org/baeldung/boot/DemoApplicationTests.java
+++ b/spring-boot/src/test/java/org/baeldung/boot/DemoApplicationTests.java
@@ -11,8 +11,7 @@ import org.springframework.test.context.web.WebAppConfiguration;
 @WebAppConfiguration
 public class DemoApplicationTests {
 
-	@Test
-	public void contextLoads() {
-	}
-
+    @Test
+    public void contextLoads() {
+    }
 }
diff --git a/spring-boot/src/test/java/org/baeldung/boot/repository/FooRepositoryTest.java b/spring-boot/src/test/java/org/baeldung/boot/repository/FooRepositoryTest.java
index e357800e11..9de7790a75 100644
--- a/spring-boot/src/test/java/org/baeldung/boot/repository/FooRepositoryTest.java
+++ b/spring-boot/src/test/java/org/baeldung/boot/repository/FooRepositoryTest.java
@@ -15,19 +15,20 @@ import org.springframework.transaction.annotation.Transactional;
 
 @Transactional
 public class FooRepositoryTest extends DemoApplicationTests {
-	@Autowired
-	private FooRepository fooRepository;
+    @Autowired
+    private FooRepository fooRepository;
 
-	@Before
-	public void setUp() {
-		fooRepository.save(new Foo("Foo"));
-		fooRepository.save(new Foo("Bar"));
-	}
+    @Before
+    public void setUp() {
+        fooRepository.save(new Foo("Foo"));
+        fooRepository.save(new Foo("Bar"));
+    }
+
+    @Test
+    public void testFindByName() {
+        Foo foo = fooRepository.findByName("Bar");
+        assertThat(foo, notNullValue());
+        assertThat(foo.getId(), is(2));
+    }
 
-	@Test
-	public void testFindByName() {
-		Foo foo = fooRepository.findByName("Bar");
-		assertThat(foo, notNullValue());
-		assertThat(foo.getId(), is(2));
-	}
 }