diff --git a/src/main/java/de/tum/in/www1/artemis/web/rest/dto/ParticipationDTO.java b/src/main/java/de/tum/in/www1/artemis/web/rest/dto/ParticipationDTO.java
index 5cb67ae781fa..5775e47fcb1f 100644
--- a/src/main/java/de/tum/in/www1/artemis/web/rest/dto/ParticipationDTO.java
+++ b/src/main/java/de/tum/in/www1/artemis/web/rest/dto/ParticipationDTO.java
@@ -1,7 +1,10 @@
 package de.tum.in.www1.artemis.web.rest.dto;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
+
 import de.tum.in.www1.artemis.domain.participation.Participation;
 
+@JsonInclude(JsonInclude.Include.NON_EMPTY)
 public record ParticipationDTO(Long id, boolean testRun, String type) {
 
     public static ParticipationDTO of(Participation participation) {