diff --git a/plugins/exporter.koplugin/main.lua b/plugins/exporter.koplugin/main.lua
index 65de9f16c..d73266ae5 100644
--- a/plugins/exporter.koplugin/main.lua
+++ b/plugins/exporter.koplugin/main.lua
@@ -127,7 +127,7 @@ function Exporter:isReady()
 end
 
 function Exporter:isDocReady()
-    return self.ui and self.ui.document and self.view
+    return self.ui and self.ui.document and self.view or false
 end
 
 function Exporter:isReadyToExport()