diff --git a/lib/shaderc/third_party/spirv-tools/CMakeLists.txt b/lib/shaderc/third_party/spirv-tools/CMakeLists.txt
index 57f3ec65a..2a06a9ca3 100644
--- a/lib/shaderc/third_party/spirv-tools/CMakeLists.txt
+++ b/lib/shaderc/third_party/spirv-tools/CMakeLists.txt
@@ -60,13 +60,15 @@ elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Android")
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "FreeBSD")
   add_definitions(-DSPIRV_FREEBSD)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "OpenBSD")
-	add_definitions(-DSPIRV_OPENBSD)
+  add_definitions(-DSPIRV_OPENBSD)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "NetBSD")
-	add_definitions(-DSPIRV_NETBSD)
+  add_definitions(-DSPIRV_NETBSD)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Fuchsia")
   add_definitions(-DSPIRV_FUCHSIA)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Haiku")
   add_definitions(-DSPIRV_HAIKU)
+elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "SunOS")
+  add_definitions(-DSPIRV_SOLARIS)
 else()
   message(FATAL_ERROR "Your platform '${CMAKE_SYSTEM_NAME}' is not supported!")
 endif()