diff --git a/src/main/java/de/uniluebeck/mi/projmi6/hapi2/HL7Receiver2.java b/src/main/java/de/uniluebeck/mi/projmi6/hapi2/HL7Receiver2.java
index 58e7516..07de57e 100644
--- a/src/main/java/de/uniluebeck/mi/projmi6/hapi2/HL7Receiver2.java
+++ b/src/main/java/de/uniluebeck/mi/projmi6/hapi2/HL7Receiver2.java
@@ -58,7 +58,7 @@ public class HL7Receiver2<T extends AbstractMessage> implements ReceivingApplica
     @Override
     public boolean canProcess(Message message) {
         // TODO: Erstmal alles processen.
-        return true;
+        return message instanceof BAR_P05 || message instanceof ADT_A01;
     }
 
     private Message generateACK(Message message) throws HL7Exception {