diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h
index 1476387c..9b47b5cc 100644
--- a/include/vkd3d_shader.h
+++ b/include/vkd3d_shader.h
@@ -2511,6 +2511,7 @@ VKD3D_SHADER_API const enum vkd3d_shader_target_type *vkd3d_shader_get_supported
  * - VKD3D_SHADER_SOURCE_HLSL to VKD3D_SHADER_TARGET_D3D_BYTECODE
  * - VKD3D_SHADER_SOURCE_HLSL to VKD3D_SHADER_TARGET_DXBC_TPF
  * - VKD3D_SHADER_SOURCE_HLSL to VKD3D_SHADER_TARGET_FX
+ * - VKD3D_SHADER_SOURCE_FX to VKD3D_SHADER_TARGET_D3D_ASM
  *
  * Supported transformations can also be detected at runtime with the functions
  * vkd3d_shader_get_supported_source_types() and