diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index d92b7b13..6eb1537f 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -87,6 +87,10 @@ static void vkd3d_spirv_validate(const struct vkd3d_shader_code *spirv) {}
 
 #endif /* HAVE_SPIRV_TOOLS */
 
+#define VKD3D_SPIRV_GENERATOR_ID 18
+#define VKD3D_SPIRV_GENERATOR_VERSION 0
+#define VKD3D_SPIRV_GENERATOR_MAGIC ((VKD3D_SPIRV_GENERATOR_ID << 16) | VKD3D_SPIRV_GENERATOR_VERSION)
+
 struct vkd3d_spirv_stream
 {
     uint32_t *words;
@@ -1535,7 +1539,7 @@ static bool vkd3d_spirv_compile_module(struct vkd3d_spirv_builder *builder,
 
     vkd3d_spirv_build_word(&stream, SpvMagicNumber);
     vkd3d_spirv_build_word(&stream, SpvVersion);
-    vkd3d_spirv_build_word(&stream, 0); /* generator */
+    vkd3d_spirv_build_word(&stream, VKD3D_SPIRV_GENERATOR_MAGIC);
     vkd3d_spirv_build_word(&stream, builder->current_id); /* bound */
     vkd3d_spirv_build_word(&stream, 0); /* schema, reserved */