diff -r d0680a23d850 -r b09aae58bba4 src/hash_map.c
--- a/src/hash_map.c	Fri Apr 07 11:30:28 2023 +0200
+++ b/src/hash_map.c	Sun Apr 09 19:03:58 2023 +0200
@@ -103,13 +103,13 @@
         if (map->store_pointers) {
             memcpy(elm->data, &value, sizeof(void *));
         } else {
-            memcpy(elm->data, value, map->itemsize);
+            memcpy(elm->data, value, map->item_size);
         }
     } else {
         // allocate new element
         struct cx_hash_map_element_s *e = cxMalloc(
                 allocator,
-                sizeof(struct cx_hash_map_element_s) + map->itemsize
+                sizeof(struct cx_hash_map_element_s) + map->item_size
         );
         if (e == NULL) {
             return -1;
@@ -119,7 +119,7 @@
         if (map->store_pointers) {
             memcpy(e->data, &value, sizeof(void *));
         } else {
-            memcpy(e->data, value, map->itemsize);
+            memcpy(e->data, value, map->item_size);
         }
 
         // copy the key
@@ -434,10 +434,10 @@
 
     if (itemsize > 0) {
         map->base.store_pointers = false;
-        map->base.itemsize = itemsize;
+        map->base.item_size = itemsize;
     } else {
         map->base.store_pointers = true;
-        map->base.itemsize = sizeof(void *);
+        map->base.item_size = sizeof(void *);
     }
 
     return (CxMap *) map;