diff --git a/module/spring-boot-opentelemetry/src/main/java/org/springframework/boot/opentelemetry/autoconfigure/OpenTelemetryResourceAttributes.java b/module/spring-boot-opentelemetry/src/main/java/org/springframework/boot/opentelemetry/autoconfigure/OpenTelemetryResourceAttributes.java
index e1379ee7f28..65d28dee905 100644
--- a/module/spring-boot-opentelemetry/src/main/java/org/springframework/boot/opentelemetry/autoconfigure/OpenTelemetryResourceAttributes.java
+++ b/module/spring-boot-opentelemetry/src/main/java/org/springframework/boot/opentelemetry/autoconfigure/OpenTelemetryResourceAttributes.java
@@ -45,7 +45,8 @@ import org.springframework.util.StringUtils;
 public class OpenTelemetryResourceAttributes {
 
 	/**
-	 * Default value for service name if {@code service.name} is not set.
+	 * Default value for service name. Used if {@code service.name} is not set and no name
+	 * can be deduced from the running application.
 	 */
 	private static final String DEFAULT_SERVICE_NAME = "unknown_service";