diff --git a/src/main/java/de/ids_mannheim/korap/resource/rewrite/CollectionRewrite.java b/src/main/java/de/ids_mannheim/korap/resource/rewrite/CollectionRewrite.java
index 189cdd5..4a5ff06 100644
--- a/src/main/java/de/ids_mannheim/korap/resource/rewrite/CollectionRewrite.java
+++ b/src/main/java/de/ids_mannheim/korap/resource/rewrite/CollectionRewrite.java
@@ -46,8 +46,7 @@
                 && node.at("/key").asText().equals("availability")) {
             String queryAvailability = node.at("/value").asText();
             String matchOp = node.at("/match").asText();
-            if (userAvailabilities.contains(queryAvailability) && matchOp.
-                    equals(KoralMatchOperator.EQUALS.toString())){
+            if (!userAvailabilities.contains(queryAvailability)){
                 userAvailabilities.remove(queryAvailability);
             }
         }
@@ -91,10 +90,10 @@
             userAvailabilities = checkAvailability(jsonNode.at("/collection"), userAvailabilities);
             if (!userAvailabilities.isEmpty()){
                 builder.with(buildAvailability(userAvailabilities));
-                builder.setBaseQuery(builder.toJSON());
-                rewrittesNode = builder.mergeWith(jsonNode).at("/collection");
-                node.set("collection", rewrittesNode, identifier);
             }
+            builder.setBaseQuery(builder.toJSON());
+            rewrittesNode = builder.mergeWith(jsonNode).at("/collection");
+            node.set("collection", rewrittesNode, identifier);
         }
         else {
             builder.with(buildAvailability(userAvailabilities));