diff --git a/include/linux/mm.h b/include/linux/mm.h
index a8baa34d0747f0..cf43deb25553d2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1220,7 +1220,6 @@ enum compound_dtor_id {
 #endif
 	NR_COMPOUND_DTORS,
 };
-extern compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS];
 
 static inline void folio_set_compound_dtor(struct folio *folio,
 		enum compound_dtor_id compound_dtor)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6a18f2232e3ee6..5b8a9d610b7271 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -284,7 +284,7 @@ const char * const migratetype_names[MIGRATE_TYPES] = {
 #endif
 };
 
-compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = {
+static compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = {
 	[NULL_COMPOUND_DTOR] = NULL,
 	[COMPOUND_PAGE_DTOR] = free_compound_page,
 #ifdef CONFIG_HUGETLB_PAGE