diff --git a/export/cmake/libint2-config.cmake.in b/export/cmake/libint2-config.cmake.in
index d6fbb75ba..09699c177 100644
--- a/export/cmake/libint2-config.cmake.in
+++ b/export/cmake/libint2-config.cmake.in
@@ -22,6 +22,7 @@ set(LIBINT2_EXT_VERSION "@LIBINT_EXT_VERSION@")
 
 set(LIBINT2_LIBRARIES Libint2::int2)
 set(LIBINT2_INCLUDE_DIRS "@PACKAGE_LIBINT2_INSTALL_INCLUDEDIR@")
+set(LIBINT_HAS_SYSTEM_BOOST_PREPROCESSOR_VARIADICS @LIBINT_HAS_SYSTEM_BOOST_PREPROCESSOR_VARIADICS@)
 
 # Import library targets
 if(NOT TARGET Libint2::libint2)
@@ -31,6 +32,12 @@ if(NOT TARGET Libint2::libint2)
   endif()
 endif()
 
+# if relied on system Boost for preprocessor variadics, make sure it's available
+if (LIBINT_HAS_SYSTEM_BOOST_PREPROCESSOR_VARIADICS AND NOT TARGET Boost::boost)
+  include(CMakeFindDependencyMacro)
+  find_dependency(Boost 1.29)
+endif()
+
 # Need Threads::Threads
 if (NOT TARGET Threads::Threads)
   find_package(Threads QUIET REQUIRED)