diff --git a/extensions/translatewrapper.cpp b/extensions/translatewrapper.cpp
index 3c7dc27..1e9f391 100644
--- a/extensions/translatewrapper.cpp
+++ b/extensions/translatewrapper.cpp
@@ -162,7 +162,7 @@ private:
 
 bool ProcessSentence(std::wstring& sentence, SentenceInfo sentenceInfo)
 {
-	if (sentenceInfo["text number"] == 0) return false;
+	if (!sentenceInfo["current select"] || sentenceInfo["text number"] == 0 || sentence.size() > maxSentenceSize) return false;
 
 	static class
 	{