diff --git a/spring-boot-modules/spring-boot-properties/src/main/java/com/baeldung/properties/ConfigPropertiesDemoApplication.java b/spring-boot-modules/spring-boot-properties/src/main/java/com/baeldung/properties/ConfigPropertiesDemoApplication.java
index 88e6f47e51..1e5e88921a 100644
--- a/spring-boot-modules/spring-boot-properties/src/main/java/com/baeldung/properties/ConfigPropertiesDemoApplication.java
+++ b/spring-boot-modules/spring-boot-properties/src/main/java/com/baeldung/properties/ConfigPropertiesDemoApplication.java
@@ -9,7 +9,7 @@ import org.springframework.context.annotation.ComponentScan;
 import com.baeldung.configurationproperties.ConfigProperties;
 
 @SpringBootApplication
-@ComponentScan(basePackageClasses = ConfigProperties.class)
+@ComponentScan(basePackageClasses = {ConfigProperties.class, AdditionalProperties.class})
 public class ConfigPropertiesDemoApplication {
     public static void main(String[] args) {
         SpringApplication.run(ConfigPropertiesDemoApplication.class, args);