diff --git a/Changes b/Changes
index 6959658..b1c4a45 100644
--- a/Changes
+++ b/Changes
@@ -27,6 +27,8 @@
 	  data fields (diewald)
 	- [bugfix] Fix case sensitivity bug in filters (diewald)
 	- [bugfix] Fix sentence expansion bug for new data (diewald)
+	- [bugfix] Deserialization of 'containsnot' instead of 'excludes'
+	  (diewald)
 
 0.51 2015-03-17
         - This is a major version (prepared for the GitHub release)
diff --git a/src/main/java/de/ids_mannheim/korap/KrillCollection.java b/src/main/java/de/ids_mannheim/korap/KrillCollection.java
index 83e40fa..a89fdfc 100644
--- a/src/main/java/de/ids_mannheim/korap/KrillCollection.java
+++ b/src/main/java/de/ids_mannheim/korap/KrillCollection.java
@@ -239,9 +239,14 @@
                 else if (match.equals("match:contains")) {
                     bfilter.and(key, json.get("value").asText().toLowerCase());
                 }
+                else if (match.equals("match:containsnot")) {
+                    bfilter.andNot(key, json.get("value").asText().toLowerCase());
+                }
+                // <LEGACY>
                 else if (match.equals("match:excludes")) {
                     bfilter.andNot(key, json.get("value").asText().toLowerCase());
                 }
+                // </LEGACY>
                 else {
                     throw new QueryException(0, "Unknown match type");
                 };
diff --git a/src/test/java/de/ids_mannheim/korap/collection/TestKrillCollectionJSON.java b/src/test/java/de/ids_mannheim/korap/collection/TestKrillCollectionJSON.java
index e518fb6..cbc60bc 100644
--- a/src/test/java/de/ids_mannheim/korap/collection/TestKrillCollectionJSON.java
+++ b/src/test/java/de/ids_mannheim/korap/collection/TestKrillCollectionJSON.java
@@ -97,7 +97,6 @@
     };
 
 
-
     @Ignore
     public void nocollectiontypegiven () {
         String metaQuery = _getJSONString("multiterm_rewrite_collection.jsonld");