diff --git a/src/lsif.rs b/src/lsif.rs
index 164d4eb..904a5af 100644
--- a/src/lsif.rs
+++ b/src/lsif.rs
@@ -260,7 +260,7 @@ pub enum ItemKind {
 #[derive(Debug, PartialEq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct Item {
-    pub document: Id,
+    pub shard: Id,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub property: Option<ItemKind>,
     #[serde(flatten)]
diff --git a/tests/tsc-unix.lsif b/tests/tsc-unix.lsif
index 24c4dc0..49eb521 100644
--- a/tests/tsc-unix.lsif
+++ b/tests/tsc-unix.lsif
@@ -61,36 +61,36 @@
 {"id":61,"type":"edge","label":"next","outV":60,"inV":25}
 {"id":62,"type":"vertex","label":"definitionResult"}
 {"id":63,"type":"edge","label":"textDocument/definition","outV":6,"inV":62}
-{"id":64,"type":"edge","label":"item","outV":62,"inVs":[13],"document":4}
+{"id":64,"type":"edge","label":"item","outV":62,"inVs":[13],"shard":4}
 {"id":65,"type":"vertex","label":"referenceResult"}
 {"id":66,"type":"edge","label":"textDocument/references","outV":6,"inV":65}
-{"id":67,"type":"edge","label":"item","outV":65,"inVs":[13],"document":4,"property":"definitions"}
+{"id":67,"type":"edge","label":"item","outV":65,"inVs":[13],"shard":4,"property":"definitions"}
 {"id":68,"type":"vertex","label":"definitionResult"}
 {"id":69,"type":"edge","label":"textDocument/definition","outV":15,"inV":68}
-{"id":70,"type":"edge","label":"item","outV":68,"inVs":[21],"document":4}
+{"id":70,"type":"edge","label":"item","outV":68,"inVs":[21],"shard":4}
 {"id":71,"type":"vertex","label":"referenceResult"}
 {"id":72,"type":"edge","label":"textDocument/references","outV":15,"inV":71}
-{"id":73,"type":"edge","label":"item","outV":71,"inVs":[21],"document":4,"property":"definitions"}
+{"id":73,"type":"edge","label":"item","outV":71,"inVs":[21],"shard":4,"property":"definitions"}
 {"id":74,"type":"vertex","label":"definitionResult"}
 {"id":75,"type":"edge","label":"textDocument/definition","outV":25,"inV":74}
-{"id":76,"type":"edge","label":"item","outV":74,"inVs":[28],"document":4}
+{"id":76,"type":"edge","label":"item","outV":74,"inVs":[28],"shard":4}
 {"id":77,"type":"vertex","label":"referenceResult"}
 {"id":78,"type":"edge","label":"textDocument/references","outV":25,"inV":77}
-{"id":79,"type":"edge","label":"item","outV":77,"inVs":[28],"document":4,"property":"definitions"}
-{"id":80,"type":"edge","label":"item","outV":77,"inVs":[60],"document":4,"property":"references"}
+{"id":79,"type":"edge","label":"item","outV":77,"inVs":[28],"shard":4,"property":"definitions"}
+{"id":80,"type":"edge","label":"item","outV":77,"inVs":[60],"shard":4,"property":"references"}
 {"id":81,"type":"vertex","label":"definitionResult"}
 {"id":82,"type":"edge","label":"textDocument/definition","outV":32,"inV":81}
-{"id":83,"type":"edge","label":"item","outV":81,"inVs":[35],"document":4}
+{"id":83,"type":"edge","label":"item","outV":81,"inVs":[35],"shard":4}
 {"id":84,"type":"vertex","label":"referenceResult"}
 {"id":85,"type":"edge","label":"textDocument/references","outV":32,"inV":84}
-{"id":86,"type":"edge","label":"item","outV":84,"inVs":[35],"document":4,"property":"definitions"}
-{"id":87,"type":"edge","label":"item","outV":84,"inVs":[44],"document":4,"property":"references"}
+{"id":86,"type":"edge","label":"item","outV":84,"inVs":[35],"shard":4,"property":"definitions"}
+{"id":87,"type":"edge","label":"item","outV":84,"inVs":[44],"shard":4,"property":"references"}
 {"id":88,"type":"vertex","label":"referenceResult"}
 {"id":89,"type":"edge","label":"textDocument/references","outV":39,"inV":88}
-{"id":90,"type":"edge","label":"item","outV":88,"inVs":[42],"document":4,"property":"references"}
+{"id":90,"type":"edge","label":"item","outV":88,"inVs":[42],"shard":4,"property":"references"}
 {"id":91,"type":"vertex","label":"referenceResult"}
 {"id":92,"type":"edge","label":"textDocument/references","outV":48,"inV":91}
-{"id":93,"type":"edge","label":"item","outV":91,"inVs":[58],"document":4,"property":"references"}
+{"id":93,"type":"edge","label":"item","outV":91,"inVs":[58],"shard":4,"property":"references"}
 {"id":94,"type":"vertex","label":"document","uri":"file:///media/hamid/nv1/garbage/b.ts","languageId":"typescript"}
 {"id":95,"type":"vertex","label":"$event","kind":"begin","scope":"document","data":94}
 {"id":96,"type":"vertex","label":"resultSet"}
@@ -115,16 +115,16 @@
 {"id":115,"type":"edge","label":"next","outV":114,"inV":104}
 {"id":116,"type":"vertex","label":"definitionResult"}
 {"id":117,"type":"edge","label":"textDocument/definition","outV":96,"inV":116}
-{"id":118,"type":"edge","label":"item","outV":116,"inVs":[102],"document":94}
+{"id":118,"type":"edge","label":"item","outV":116,"inVs":[102],"shard":94}
 {"id":119,"type":"vertex","label":"referenceResult"}
 {"id":120,"type":"edge","label":"textDocument/references","outV":96,"inV":119}
-{"id":121,"type":"edge","label":"item","outV":119,"inVs":[102],"document":94,"property":"definitions"}
-{"id":122,"type":"edge","label":"item","outV":71,"inVs":[108,114],"document":94,"property":"references"}
-{"id":123,"type":"edge","label":"item","outV":65,"inVs":[112],"document":94,"property":"references"}
+{"id":121,"type":"edge","label":"item","outV":119,"inVs":[102],"shard":94,"property":"definitions"}
+{"id":122,"type":"edge","label":"item","outV":71,"inVs":[108,114],"shard":94,"property":"references"}
+{"id":123,"type":"edge","label":"item","outV":65,"inVs":[112],"shard":94,"property":"references"}
 {"id":124,"type":"vertex","label":"definitionResult"}
 {"id":125,"type":"edge","label":"textDocument/definition","outV":48,"inV":124}
-{"id":126,"type":"edge","label":"item","outV":124,"inVs":[54],"document":46}
-{"id":127,"type":"edge","label":"item","outV":91,"inVs":[54],"document":46,"property":"definitions"}
+{"id":126,"type":"edge","label":"item","outV":124,"inVs":[54],"shard":46}
+{"id":127,"type":"edge","label":"item","outV":91,"inVs":[54],"shard":46,"property":"definitions"}
 {"id":128,"type":"edge","label":"contains","outV":4,"inVs":[13,21,28,35,42,44,58,60]}
 {"id":129,"type":"vertex","label":"$event","kind":"end","scope":"document","data":4}
 {"id":130,"type":"edge","label":"contains","outV":46,"inVs":[54]}