diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4b2b789..48d9be0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,6 +92,7 @@ find_package(pugixml REQUIRED)
 find_package(RapidJSON REQUIRED)
 find_package(Boost COMPONENTS program_options filesystem nowide REQUIRED)
 find_package(libzip REQUIRED)
+find_package(SPIRV-Tools-opt REQUIRED)
 find_package(glslang REQUIRED)
 find_package(ZLIB REQUIRED)
 find_package(zstd MODULE REQUIRED) # MODULE so that zstd::zstd is available