diff --git a/include/spirv/spir-v.xml b/include/spirv/spir-v.xml
index 9354bf6..d18bfcd 100644
--- a/include/spirv/spir-v.xml
+++ b/include/spirv/spir-v.xml
@@ -79,7 +79,8 @@
         <id value="26"  vendor="Xenia" tool="Xenia Emulator Microcode Translator" comment="Contact Vitaliy Kuzmin, triang3l@yandex.ru, https://github.com/xenia-project/xenia"/>
         <id value="27"  vendor="Embark Studios" tool="Rust GPU Compiler Backend" comment="https://github.com/embarkstudios/rust-gpu"/>
         <id value="28"  vendor="gfx-rs community" tool="Naga" comment="https://github.com/gfx-rs/naga"/>
-        <unused start="29" end="0xFFFF" comment="Tool ID range reservable for future use by vendors"/>
+        <id value="29"  vendor="Mikkosoft Productions" tool="MSP Shader Compiler" comment="Contact Mikko Rasa, tdb@tdb.fi"/>
+        <unused start="30" end="0xFFFF" comment="Tool ID range reservable for future use by vendors"/>
     </ids>
 
     <!-- SECTION: SPIR-V Opcodes and Enumerants -->