diff --git a/crates/rust-analyzer/src/cli/lsif.rs b/crates/rust-analyzer/src/cli/lsif.rs
index b9bb335b05..5e6d286987 100644
--- a/crates/rust-analyzer/src/cli/lsif.rs
+++ b/crates/rust-analyzer/src/cli/lsif.rs
@@ -212,20 +212,30 @@ impl LsifManager<'_> {
                 in_v: result_id.into(),
                 out_v: result_set_id.into(),
             }));
+            let mut edges = token.references.iter().fold(
+                HashMap::<_, Vec<lsp_types::NumberOrString>>::new(),
+                |mut edges, x| {
+                    let entry =
+                        edges.entry((x.range.file_id, x.is_definition)).or_insert_with(Vec::new);
+                    entry.push((*self.range_map.get(&x.range).unwrap()).into());
+                    edges
+                },
+            );
             for x in token.references {
-                let vertex = *self.range_map.get(&x.range).unwrap();
-                self.add_edge(lsif::Edge::Item(lsif::Item {
-                    document: (*self.file_map.get(&x.range.file_id).unwrap()).into(),
-                    property: Some(if x.is_definition {
-                        lsif::ItemKind::Definitions
-                    } else {
-                        lsif::ItemKind::References
-                    }),
-                    edge_data: lsif::EdgeDataMultiIn {
-                        in_vs: vec![vertex.into()],
-                        out_v: result_id.into(),
-                    },
-                }));
+                if let Some(vertices) = edges.remove(&(x.range.file_id, x.is_definition)) {
+                    self.add_edge(lsif::Edge::Item(lsif::Item {
+                        document: (*self.file_map.get(&x.range.file_id).unwrap()).into(),
+                        property: Some(if x.is_definition {
+                            lsif::ItemKind::Definitions
+                        } else {
+                            lsif::ItemKind::References
+                        }),
+                        edge_data: lsif::EdgeDataMultiIn {
+                            in_vs: vertices,
+                            out_v: result_id.into(),
+                        },
+                    }));
+                }
             }
         }
     }