diff --git a/Sources/NeonPlugin/Coordinator.swift b/Sources/NeonPlugin/Coordinator.swift
index bb0dafe..e8a4442 100644
--- a/Sources/NeonPlugin/Coordinator.swift
+++ b/Sources/NeonPlugin/Coordinator.swift
@@ -73,7 +73,8 @@ public class Coordinator {
         }
 
         return tsClient.tokenProvider(with: highlightsQuery) { range, _ in
-            textContentManager.attributedString(in: NSTextRange(range, provider: textContentManager))?.string
+            guard range.isEmpty == false else { return nil }
+            return textContentManager.attributedString(in: NSTextRange(range, provider: textContentManager))?.string
         }
     }