diff --git a/intercom-java/src/main/java/io/intercom/api/Conversation.java b/intercom-java/src/main/java/io/intercom/api/Conversation.java
index f29a3237..a7ea3016 100644
--- a/intercom-java/src/main/java/io/intercom/api/Conversation.java
+++ b/intercom-java/src/main/java/io/intercom/api/Conversation.java
@@ -141,9 +141,6 @@ static void validateMessageType(Reply reply) {
     }
 
     static void validateListRequest(Map<String, String> params) {
-        if (!params.containsKey("type")) {
-            throw new InvalidException("a user or admin type must be supplied for a conversation query");
-        }
 
         if (isAdminQuery(params)
                 && !(params.containsKey("admin_id"))) {