diff --git a/src/qtgui/reslist.cpp b/src/qtgui/reslist.cpp
index 0b1a6c3d..cf01b66a 100644
--- a/src/qtgui/reslist.cpp
+++ b/src/qtgui/reslist.cpp
@@ -141,7 +141,7 @@ void ResList::setDocSource()
     resultPageNext();
 }
 
-void ResList::setSortParams(const DocSeqSortSpec& spec)
+void ResList::setSortParams(DocSeqSortSpec spec)
 {
     LOGDEB(("ResList::setSortParams\n"));
     m_sortspecs = spec;
diff --git a/src/qtgui/reslist.h b/src/qtgui/reslist.h
index a5e44aa2..941ba001 100644
--- a/src/qtgui/reslist.h
+++ b/src/qtgui/reslist.h
@@ -101,7 +101,7 @@ class ResList : public QTEXTBROWSER
     // Only used for qt ver >=4 but seems we cant undef it
     virtual void selecChanged();
     virtual void setDocSource();
-    virtual void setSortParams(const DocSeqSortSpec &spec);
+    virtual void setSortParams(DocSeqSortSpec spec);
     virtual void setFilterParams(const DocSeqFiltSpec &spec);
 
  signals: