1 files changed, 2 insertions, 0 deletions
diff --git a/src/RESearch.h b/src/RESearch.h
index 8ca9cd0b8..a558b371d 100644
--- a/src/RESearch.h
+++ b/src/RESearch.h
@@ -20,6 +20,8 @@
 class CharacterIndexer {
 public: 
 	virtual char CharAt(int index)=0;
+	virtual ~CharacterIndexer() {
+	}
 };
 
 class RESearch {