Index: avogadro-1.1.1/CMakeLists.txt
===================================================================
--- avogadro-1.1.1/CMakeLists.txt
+++ avogadro-1.1.1/CMakeLists.txt	2014-02-18 16:23:53.872368715 +0100
@@ -547,7 +547,7 @@
 #    )
     install(FILES
       "${CMAKE_CURRENT_BINARY_DIR}/avogadro.prf"
-      DESTINATION "${CMAKE_INSTALL_PREFIX}/${QT_MKSPECS_RELATIVE}/features"
+      DESTINATION "${QT_MKSPECS_DIR}/features"
     )
 #  endif ("${QT_MKSPECS_DIR}" MATCHES ^$"${CMAKE_INSTALL_PREFIX}/")
 else()