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--- a/src/rcldb/rcldb_p.h
+++ b/src/rcldb/rcldb_p.h
@@ -91,7 +91,7 @@
     ~Native() {
     }
 
-    string makeAbstract(Xapian::docid id, Query *query);
+    vector<string> makeAbstract(Xapian::docid id, Query *query);
 
     bool dbDataToRclDoc(Xapian::docid docid, std::string &data, Doc &doc);