diff -Nuar qpdfview-0.3.1.orig/miscellaneous/qpdfview.desktop qpdfview-0.3.1/miscellaneous/qpdfview.desktop
--- qpdfview-0.3.1.orig/miscellaneous/qpdfview.desktop	2012-07-01 18:41:14.000000000 +0300
+++ qpdfview-0.3.1/miscellaneous/qpdfview.desktop	2012-07-12 15:49:36.000000000 +0300
@@ -6,5 +6,5 @@
 GenericName=PDF viewer
 Comment=A tabbed PDF viewer using the poppler library.
 Categories=Viewer;Office;
-Exec=qpdfview %f
+Exec=qpdfview --unique %f
 MimeType=application/pdf;