diff --git a/src/server.ts b/src/server.ts
index 2b32516..e03ae4b 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -51,7 +51,13 @@ documents.onDidChangeContent((event) => {
 })
 
 documents.onDidClose((event) => {
-    server?.close(event.document.uri)
+    const diagnostics = server?.close(event.document.uri)
+    if (diagnostics) {
+        connection.sendDiagnostics({
+            uri: event.document.uri,
+            diagnostics,
+        })
+    }
 })
 
 connection.onDocumentSymbol((params) => {
diff --git a/src/sksl-server.ts b/src/sksl-server.ts
index 9d8498f..f830466 100644
--- a/src/sksl-server.ts
+++ b/src/sksl-server.ts
@@ -31,7 +31,7 @@ export class SkSLServer {
         )
     }
 
-    public close(uri: string) {
+    public close(uri: string): ls.Diagnostic[] | undefined {
         const file = URI.parse(uri).fsPath
         const uris = this.files.get(file)
         if (uris) {
@@ -55,6 +55,7 @@ export class SkSLServer {
             // Delete document
             this.documents.delete(file)
         }
+        return []
     }
 
     public getSymbol(uri: string): ls.DocumentSymbol[] {