diff --git a/Makefile.system b/Makefile.system
index 51bd1c4bd..ce071133d 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -1349,6 +1349,7 @@ export ARCH
 export CORE
 export LIBCORE
 export __BYTE_ORDER__
+export ELF_VERSION
 export PGCPATH
 export CONFIG
 export CC