diff --git a/src/gc-pages.c b/src/gc-pages.c
index 40e54541361488..1a19f6ae84dc00 100644
--- a/src/gc-pages.c
+++ b/src/gc-pages.c
@@ -45,6 +45,11 @@ JL_DLLEXPORT uint64_t jl_current_pg_count(void)
     return (uint64_t)jl_atomic_load(&current_pg_count);
 }
 
+JL_DLLEXPORT uint64_t jl_get_pg_size(void)
+{
+    return GC_PAGE_SZ;
+}
+
 void jl_gc_init_page(void)
 {
     if (GC_PAGE_SZ * block_pg_cnt < jl_page_size)