diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b1e371..17497bf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -68,9 +68,9 @@ SET(BOOST_REQUIRED_COMPONENTS
     system
 )
 
-if(UNIX AND EXISTS "/usr/lib64")
+if(UNIX AND NOT BOOST_ROOT AND EXISTS "/usr/lib64")
     list(APPEND BOOST_LIBRARYDIR "/usr/lib64") #fedora 64-bit fix
-endif(UNIX AND EXISTS "/usr/lib64")
+endif(UNIX AND NOT BOOST_ROOT AND EXISTS "/usr/lib64")
 
 set(Boost_ADDITIONAL_VERSIONS
     "1.35.0" "1.35" "1.36.0" "1.36" "1.37.0" "1.37" "1.38.0" "1.38" "1.39.0" "1.39"