diff --git a/src/main/java/lol/slz/gptjar/model/Message.java b/src/main/java/lol/slz/gptjar/model/Message.java
index 9f3777b..ea68c9d 100644
--- a/src/main/java/lol/slz/gptjar/model/Message.java
+++ b/src/main/java/lol/slz/gptjar/model/Message.java
@@ -55,6 +55,7 @@ public static Message fromJson(JSONObject json) {
 
     public enum Role {
         USER,
+        SYSTEM,
         ASSISTANT,
         FUNCTION;