diff --git a/include/bgfx/c99/bgfx.h b/include/bgfx/c99/bgfx.h
index 877dd7e64..f0c1bc58d 100644
--- a/include/bgfx/c99/bgfx.h
+++ b/include/bgfx/c99/bgfx.h
@@ -463,6 +463,8 @@ typedef struct bgfx_vertex_buffer_handle_s { uint16_t idx; } bgfx_vertex_buffer_
 typedef struct bgfx_vertex_decl_handle_s { uint16_t idx; } bgfx_vertex_decl_handle_t;
 
 
+#define BGFX_HANDLE_IS_VALID(h) ((h).idx != UINT16_MAX)
+
 /**
  * Memory release callback.
  *
diff --git a/scripts/temp.bgfx.h b/scripts/temp.bgfx.h
index 995c53096..e1dde4ccf 100644
--- a/scripts/temp.bgfx.h
+++ b/scripts/temp.bgfx.h
@@ -106,6 +106,8 @@ typedef struct bgfx_callback_vtbl_s
 
 $chandles
 
+#define BGFX_HANDLE_IS_VALID(h) ((h).idx != UINT16_MAX)
+
 $cfuncptrs
 
 $cstructs