diff --git a/Installation/cmake/modules/CGAL_Boost_iostreams_support.cmake b/Installation/cmake/modules/CGAL_Boost_iostreams_support.cmake
index 04c8cc5529b..a8d1c4ddd45 100644
--- a/Installation/cmake/modules/CGAL_Boost_iostreams_support.cmake
+++ b/Installation/cmake/modules/CGAL_Boost_iostreams_support.cmake
@@ -35,7 +35,7 @@ if(Boost_IOSTREAMS_FOUND AND NOT TARGET CGAL::Boost_iostreams_support)
   if(CMAKE_VERSION VERSION_LESS 3.11)
     set_target_properties(CGAL::Boost_iostreams_support PROPERTIES
       INTERFACE_COMPILE_DEFINITIONS "CGAL_LINKED_WITH_BOOST_IOSTREAMS"
-      INTERFACE_LINK_LIBRARIES ${Boost_LIB} ${ZLIB_LIBS})
+      INTERFACE_LINK_LIBRARIES "${Boost_LIB};${ZLIB_LIBS}")
   else()
     set_target_properties(CGAL::Boost_iostreams_support PROPERTIES
       INTERFACE_COMPILE_DEFINITIONS "CGAL_LINKED_WITH_BOOST_IOSTREAMS")