diff --git a/restservice/src/main/java/com/plannaplan/responses/models/ExchangeResponse.java b/restservice/src/main/java/com/plannaplan/responses/models/ExchangeResponse.java
index fb02697..8e8d50a 100755
--- a/restservice/src/main/java/com/plannaplan/responses/models/ExchangeResponse.java
+++ b/restservice/src/main/java/com/plannaplan/responses/models/ExchangeResponse.java
@@ -27,7 +27,9 @@ public class ExchangeResponse {
 		this.id = exchange.getId();
 		this.ownedAssignment = new GroupDefaultResponse(exchange.getOwnedAssignment().getGroup());
 		this.desiredGroup = new GroupDefaultResponse(exchange.getDesiredAssignment());
-		this.courseName = exchange.getOwnedAssignment().getGroup().getCourseId().getName();
+		this.courseName = exchange.getOwnedAssignment().getGroup().getCourseId() != null
+				? exchange.getOwnedAssignment().getGroup().getCourseId().getName()
+				: "";
 	}
 
 	/**