diff --git a/backend/windmill-api/src/postgres_triggers/handler.rs b/backend/windmill-api/src/postgres_triggers/handler.rs
index f1ee4bc179..933582670c 100644
--- a/backend/windmill-api/src/postgres_triggers/handler.rs
+++ b/backend/windmill-api/src/postgres_triggers/handler.rs
@@ -46,7 +46,7 @@ pub struct Postgres {
     pub dbname: String,
     #[serde(default)]
     pub sslmode: String,
-    #[serde(deserialize_with = "empty_as_none")]
+    #[serde(default, deserialize_with = "empty_as_none")]
     pub root_certificate_pem: Option<String>,
 }