diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 52b77684acda..0335b72cab00 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -54,6 +54,7 @@ int memory_add_physaddr_to_nid(u64 start)
 {
 	return hot_add_scn_to_nid(start);
 }
+EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #endif
 
 int __weak create_section_mapping(unsigned long start, unsigned long end,