diff --git a/src/de/dhbwstuttgart/syntaxtree/type/RefType.java b/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
index edd0c49f..3c9a5907 100644
--- a/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
@@ -31,6 +31,7 @@ public class RefType extends RefTypeOrTPHOrWildcardOrGeneric
     public String toString(){
         String params = "";
         if(parameter.size()>0){
+            params += "<";
             Iterator<RefTypeOrTPHOrWildcardOrGeneric> it = parameter.iterator();
             while(it.hasNext()){
                 RefTypeOrTPHOrWildcardOrGeneric param = it.next();