diff --git a/src/main.rs b/src/main.rs
index f607aad..ae78bc4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -144,6 +144,7 @@ struct GetMessagesParams {
 
 #[derive(Serialize)]
 struct GetMessagesResp {
+    #[serde(skip_serializing_if = "Option::is_none")]
     cursor: Option<String>,
     messages: Vec<serde_json::Value>,
 }
@@ -175,6 +176,7 @@ struct ListConvosParams {
 
 #[derive(Serialize)]
 struct ListConvosResp {
+    #[serde(skip_serializing_if = "Option::is_none")]
     cursor: Option<String>,
     convos: Vec<ConvoView>,
 }
@@ -225,6 +227,7 @@ struct GetLogParams {
 
 #[derive(Serialize)]
 struct GetLogResp {
+    #[serde(skip_serializing_if = "Option::is_none")]
     cursor: Option<String>,
     logs: Vec<serde_json::Value>,
 }