diff --git a/lib/Makefile b/lib/Makefile
index 15259d0..32bf3f3 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -122,6 +122,7 @@
 endif
 
 obj-y += date.o
+obj-$(CONFIG_LIB_ELF) += elf.o
 
 #
 # Build a fast OID lookup registry from include/linux/oid_registry.h