diff --git a/include/private/vkd3d_common.h b/include/private/vkd3d_common.h
index cc9e4326..f01c7125 100644
--- a/include/private/vkd3d_common.h
+++ b/include/private/vkd3d_common.h
@@ -267,16 +267,28 @@ static inline int ascii_strcasecmp(const char *a, const char *b)
     return c_a - c_b;
 }
 
+static inline uint64_t vkd3d_atomic_add_fetch_u64(uint64_t volatile *x, uint64_t val)
+{
+#if HAVE_SYNC_ADD_AND_FETCH
+    return __sync_add_and_fetch(x, val);
+#elif defined(_WIN32)
+    return InterlockedAdd64((LONG64 *)x, val);
+#else
+# error "vkd3d_atomic_add_fetch_u64() not implemented for this platform"
+#endif
+}
+
+static inline uint64_t vkd3d_atomic_increment_u64(uint64_t volatile *x)
+{
+    return vkd3d_atomic_add_fetch_u64(x, 1);
+}
+
 #ifndef _WIN32
 # if HAVE_SYNC_ADD_AND_FETCH
 static inline LONG InterlockedIncrement(LONG volatile *x)
 {
     return __sync_add_and_fetch(x, 1);
 }
-static inline LONG64 InterlockedIncrement64(LONG64 volatile *x)
-{
-    return __sync_add_and_fetch(x, 1);
-}
 # else
 #  error "InterlockedIncrement() not implemented for this platform"
 # endif  /* HAVE_SYNC_ADD_AND_FETCH */
diff --git a/libs/vkd3d/resource.c b/libs/vkd3d/resource.c
index 163dd6ce..f9e50335 100644
--- a/libs/vkd3d/resource.c
+++ b/libs/vkd3d/resource.c
@@ -22,7 +22,7 @@
 #define VKD3D_NULL_BUFFER_SIZE 16
 #define VKD3D_NULL_VIEW_FORMAT DXGI_FORMAT_R8G8B8A8_UNORM
 
-LONG64 object_global_serial_id;
+uint64_t object_global_serial_id;
 
 static inline bool is_cpu_accessible_heap(const D3D12_HEAP_PROPERTIES *properties)
 {
@@ -4314,7 +4314,7 @@ static HRESULT d3d12_descriptor_heap_init(struct d3d12_descriptor_heap *descript
 
     descriptor_heap->ID3D12DescriptorHeap_iface.lpVtbl = &d3d12_descriptor_heap_vtbl;
     descriptor_heap->refcount = 1;
-    descriptor_heap->serial_id = InterlockedIncrement64(&object_global_serial_id);
+    descriptor_heap->serial_id = vkd3d_atomic_increment_u64(&object_global_serial_id);
 
     descriptor_heap->desc = *desc;
 
diff --git a/libs/vkd3d/vkd3d_private.h b/libs/vkd3d/vkd3d_private.h
index 71945ea1..7d159a17 100644
--- a/libs/vkd3d/vkd3d_private.h
+++ b/libs/vkd3d/vkd3d_private.h
@@ -67,7 +67,7 @@
  * this number to prevent excessive pool memory use. */
 #define VKD3D_MAX_VIRTUAL_HEAP_DESCRIPTORS_PER_TYPE (16 * 1024u)
 
-extern LONG64 object_global_serial_id;
+extern uint64_t object_global_serial_id;
 
 struct d3d12_command_list;
 struct d3d12_device;