diff --git a/include/mimalloc.h b/include/mimalloc.h
index e88d9712..b5fd6f96 100644
--- a/include/mimalloc.h
+++ b/include/mimalloc.h
@@ -161,6 +161,7 @@ mi_decl_export mi_decl_allocator void* mi_heap_malloc(mi_heap_t* heap, size_t si
 mi_decl_export mi_decl_allocator void* mi_heap_zalloc(mi_heap_t* heap, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(2);
 mi_decl_export mi_decl_allocator void* mi_heap_calloc(mi_heap_t* heap, size_t count, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size2(2, 3);
 mi_decl_export mi_decl_allocator void* mi_heap_mallocn(mi_heap_t* heap, size_t count, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size2(2, 3);
+mi_decl_export mi_decl_allocator void* mi_heap_malloc_small(mi_heap_t* heap, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(2);
 
 mi_decl_export char* mi_heap_strdup(mi_heap_t* heap, const char* s) mi_attr_noexcept;
 mi_decl_export char* mi_heap_strndup(mi_heap_t* heap, const char* s, size_t n) mi_attr_noexcept;