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--- a/src/qtgui/main.cpp
+++ b/src/qtgui/main.cpp
@@ -133,7 +133,7 @@
     return true;
 }
 
-bool getStemLangs(list<string>& langs)
+bool getStemLangs(vector<string>& langs)
 {
     string reason;
     if (!maybeOpenDb(reason)) {