diff --git a/oparl-server/src/main/java/de/twomartens/oparlservice/interceptors/TraceIdInterceptor.java b/oparl-server/src/main/java/de/twomartens/oparlservice/interceptors/TraceIdInterceptor.java
index 7942284..6417171 100644
--- a/oparl-server/src/main/java/de/twomartens/oparlservice/interceptors/TraceIdInterceptor.java
+++ b/oparl-server/src/main/java/de/twomartens/oparlservice/interceptors/TraceIdInterceptor.java
@@ -39,14 +39,12 @@ public class TraceIdInterceptor extends HandlerInterceptorAdapter
    * A failsafe method to set a TraceId to the MDC.
    *
    * @param traceId should be a traceId, if it is null or empty a new one will be created.
-   * @return the traceId param, or a new one, if it was empty
    */
-  public String setOrCreateTraceId(String traceId) {
+  public void setOrCreateTraceId(String traceId) {
     if (traceId == null || traceId.trim().isEmpty()) {
       traceId = UUID.randomUUID().toString();
     }
     MDC.put(LOGGER_TRACE_ID, traceId);
-    return traceId;
   }
 
   /**