diff --git a/include/tlibc/collections/List.h b/include/tlibc/collections/List.h
index 9824fdf..8a4c3ed 100755
--- a/include/tlibc/collections/List.h
+++ b/include/tlibc/collections/List.h
@@ -37,8 +37,18 @@ static inline List(T) List_##T##_copy(const List(T)* src) { \
  \
 static inline void List_##T##_destroy(List(T)* self) { _List_destroy((void*)self); } \
  \
+/* alloc bigger buffer if size + len_to_add won't fit in current */ \
+static inline void List_##T##_increaseCapacity(List(T)* self, u32 len_to_add){ \
+    _List_increaseCapacity((void*)self, len_to_add); \
+} \
+ \
+/* call increaseCapacity and return pointer to next empty cell */ \
+static inline T* List_##T##_expand(List(T)* self, u32 len_to_add){ \
+    return (T*)_List_expand((void*)self, len_to_add); \
+} \
+ \
 static inline void List_##T##_push(List(T)* self, T value) { \
-    T* empty_cell = (T*)(_List_expand((void*)self, 1)); \
+    T* empty_cell = List_##T##_expand(self, 1); \
     *empty_cell = value; \
 } \
  \
@@ -46,11 +56,6 @@ static inline void List_##T##_pushMany(List(T)* self, T* values_ptr, u32 len) {
     _List_push((void*)self, values_ptr, len); \
 } \
  \
-/* alloc bigger buffer if size + len_to_add won't fit in current */ \
-static inline void List_##T##_increaseCapacity(List(T)* self, u32 len_to_add){ \
-    _List_increaseCapacity((void*)self, len_to_add); \
-} \
- \
 static inline bool List_##T##_tryRemoveAt(List(T)* self, u32 i, u32 remove_len) ATTRIBUTE_WARN_UNUSED_RESULT; \
 static inline bool List_##T##_tryRemoveAt(List(T)* self, u32 i, u32 remove_len) { \
     return _List_tryRemoveAt((void*)self, i, remove_len); \