diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 431b8544..18f8998f 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -286,7 +286,7 @@ static void spirv_parser_print_generator(struct spirv_parser *parser, uint32_t m
 
 static enum vkd3d_result spirv_parser_read_header(struct spirv_parser *parser)
 {
-    uint32_t magic, version, generator, bound;
+    uint32_t magic, version, generator, bound, schema;
     unsigned int major, minor;
 
     if (parser->pos > parser->size || parser->size - parser->pos < VKD3D_SPIRV_HEADER_SIZE)
@@ -300,6 +300,7 @@ static enum vkd3d_result spirv_parser_read_header(struct spirv_parser *parser)
     version = spirv_parser_read_u32(parser);
     generator = spirv_parser_read_u32(parser);
     bound = spirv_parser_read_u32(parser);
+    schema = spirv_parser_read_u32(parser);
 
     if (magic != SpvMagicNumber)
     {
@@ -331,12 +332,20 @@ static enum vkd3d_result spirv_parser_read_header(struct spirv_parser *parser)
         return VKD3D_ERROR_INVALID_SHADER;
     }
 
+    if (schema)
+    {
+        spirv_parser_error(parser, VKD3D_SHADER_ERROR_SPV_NOT_IMPLEMENTED,
+                "Unable to handle instruction schema %#08x.", schema);
+        return VKD3D_ERROR_NOT_IMPLEMENTED;
+    }
+
     if (parser->formatting & VKD3D_SHADER_COMPILE_OPTION_FORMATTING_HEADER)
     {
         spirv_parser_print_comment(parser, "SPIR-V");
         spirv_parser_print_comment(parser, "Version: %u.%u", major, minor);
         spirv_parser_print_generator(parser, generator);
         spirv_parser_print_comment(parser, "Bound: %u", bound);
+        spirv_parser_print_comment(parser, "Schema: %u", schema);
     }
 
     return VKD3D_OK;