diff --git a/rust/lancedb/src/index.rs b/rust/lancedb/src/index.rs
index ae3c089b..f79d40d3 100644
--- a/rust/lancedb/src/index.rs
+++ b/rust/lancedb/src/index.rs
@@ -121,6 +121,7 @@ pub enum IndexType {
     // FTS
     #[serde(alias = "INVERTED")]
     FTS,
+    INVERTED,
 }
 
 impl std::fmt::Display for IndexType {