diff --git a/CMakeLists.txt b/CMakeLists.txt
index a234caa..cd9d2c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -114,6 +114,8 @@ if(USE_SYSTEM_NCNN)
             include("${GLSLANG_TARGET_DIR}/HLSLTargets.cmake")
         endif()
         include("${GLSLANG_TARGET_DIR}/glslangTargets.cmake")
+        include("${GLSLANG_TARGET_DIR}/SPIRV-Tools/SPIRV-ToolsTarget.cmake")
+        include("${GLSLANG_TARGET_DIR}/SPIRV-Tools-opt/SPIRV-Tools-optTargets.cmake")
         include("${GLSLANG_TARGET_DIR}/SPIRVTargets.cmake")
 
         if (NOT TARGET glslang OR NOT TARGET SPIRV)