1 files changed, 1 insertions, 1 deletions
diff --git a/src/api.rs b/src/api.rs
index d124174..2e41aae 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -24,7 +24,7 @@ pub struct Query {
     pub range: Range,
     #[serde(rename = "intervalMs")] pub interval_ms: i32,
     #[serde(rename = "maxDataPoints")] pub max_data_points: i32,
-    pub format: String,
+    pub format: Option<String>,
     pub targets: Vec<Target>,
 }