diff --git a/VoiceInk/Services/ScreenCaptureService.swift b/VoiceInk/Services/ScreenCaptureService.swift
index 17b47ad..7b8184c 100644
--- a/VoiceInk/Services/ScreenCaptureService.swift
+++ b/VoiceInk/Services/ScreenCaptureService.swift
@@ -134,6 +134,10 @@ class ScreenCaptureService: ObservableObject {
         }
         
         logger.notice("🎬 Starting screen capture")
+        
+        await MainActor.run {
+            self.lastCapturedText = nil
+        }
 
         guard let windowInfo = getActiveWindowInfo() else {
             logger.notice("❌ Failed to get window info")