diff --git a/src/main/java/de/ids_mannheim/korap/query/serialize/CQLTree.java b/src/main/java/de/ids_mannheim/korap/query/serialize/CQLTree.java
index 97537a4..84f97e3 100644
--- a/src/main/java/de/ids_mannheim/korap/query/serialize/CQLTree.java
+++ b/src/main/java/de/ids_mannheim/korap/query/serialize/CQLTree.java
@@ -17,6 +17,10 @@
 
 import de.ids_mannheim.korap.util.QueryException;
 
+/**
+ * 	@author margaretha
+ *  
+ * */
 public class CQLTree extends AbstractSyntaxTree {
 	
 	private static final String VERSION_1_1 = "1.1";
@@ -32,12 +36,16 @@
     
 	private LinkedHashMap<String,Object> requestMap;
 	private String version;
-	private boolean isCaseSensitive;
+	private boolean isCaseSensitive; // default true
 	private StringBuilder sb;
 	
-	public CQLTree(String query) throws QueryException {
+	/*public CQLTree(String query) throws QueryException {
 		this(query, VERSION_1_2, true);
-	}
+	}*/
+	
+	public CQLTree(String query, String version) throws QueryException {
+		this(query, version, true);
+	} 
 	
 	public CQLTree(String query, String version, boolean isCaseSensitive) throws QueryException {
 		this.sb = new StringBuilder();
@@ -189,12 +197,5 @@
                             modifier.getValue() + "\" is not supported.");
         }
 	}
-	
-	public String getVersion() {
-		return version;
-	}
 
-	public void setVersion(String version) {
-		this.version = version;
-	}
 }
diff --git a/src/test/java/CQLTest.java b/src/test/java/CQLTest.java
index ef778b3..d9dba01 100644
--- a/src/test/java/CQLTest.java
+++ b/src/test/java/CQLTest.java
@@ -12,7 +12,7 @@
 public class CQLTest {
 	
 	String query;
-	
+	String version ="1.2";
 	@Test
 	public void testBooleanQuery() throws CQLParseException, IOException, QueryException{		
 		query="((Sonne) or (Mond)) and (scheint)";		
@@ -26,7 +26,7 @@
 					"]}," +
 					"{@type=korap:token, wrap={@type=korap:term, key=scheint, layer=orth, match=match:eq}}" +
 			"]}";
-		CQLTree cqlTree = new CQLTree(query);		
+		CQLTree cqlTree = new CQLTree(query, version);		
 		String serializedQuery = cqlTree.getRequestMap().get("query").toString();
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 		
@@ -42,7 +42,7 @@
 							"{@type=korap:token, wrap={@type=korap:term, key=Mond, layer=orth, match=match:eq}}" +
 					"]}" +
 				"]}";
-		cqlTree = new CQLTree(query);		
+		cqlTree = new CQLTree(query, version);		
 		serializedQuery = cqlTree.getRequestMap().get("query").toString();
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 		
@@ -57,7 +57,7 @@
 				"{@type=korap:token, wrap={@type=korap:term, key=Mond, layer=orth, match=match:eq}}" +
 			"]}";		
 		
-		CQLTree cqlTree = new CQLTree(query);		
+		CQLTree cqlTree = new CQLTree(query, version);		
 		String serializedQuery = cqlTree.getRequestMap().get("query").toString();
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 		
@@ -71,7 +71,7 @@
 				"{@type=korap:token, wrap={@type=korap:term, key=Mond, layer=orth, match=match:eq}}" +
 			"]}";
 		
-		cqlTree = new CQLTree(query);		
+		cqlTree = new CQLTree(query, version);		
 		serializedQuery = cqlTree.getRequestMap().get("query").toString();
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 				
@@ -87,7 +87,7 @@
 						"{@type=korap:token, wrap={@type=korap:term, key=scheint, layer=orth, match=match:eq}}" +
 					"]}" +
 				"]}";
-		cqlTree = new CQLTree(query);		
+		cqlTree = new CQLTree(query, version);		
 		serializedQuery = cqlTree.getRequestMap().get("query").toString();
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 	}
@@ -96,7 +96,7 @@
 	public void testTermQuery() throws CQLParseException, IOException, QueryException{
 		query = "Sonne";		
 		String jsonLd = "{@type=korap:token, wrap={@type=korap:term, key=Sonne, layer=orth, match=match:eq}}";		
-		CQLTree cqlTree = new CQLTree(query);		
+		CQLTree cqlTree = new CQLTree(query, version);		
 		String serializedQuery = cqlTree.getRequestMap().get("query").toString();		
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 	}
@@ -110,7 +110,7 @@
 					"{@type=korap:token, wrap={@type=korap:term, key=Mann, layer=orth, match=match:eq}}" +
 				"]}";
 		
-		CQLTree cqlTree = new CQLTree(query);		
+		CQLTree cqlTree = new CQLTree(query, version);		
 		String serializedQuery = cqlTree.getRequestMap().get("query").toString();
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 		
@@ -123,7 +123,7 @@
 					"{@type=korap:token, wrap={@type=korap:term, key=schläft, layer=orth, match=match:eq}}" +
 				"]}";
 		
-		cqlTree = new CQLTree(query);		
+		cqlTree = new CQLTree(query, version);		
 		serializedQuery = cqlTree.getRequestMap().get("query").toString();
 		assertEquals(jsonLd.replace(" ", ""), serializedQuery.replace(" ", ""));
 	}