diff --git a/tools/shaderc/shaderc.cpp b/tools/shaderc/shaderc.cpp
index 3a32e34cf..713565d9d 100644
--- a/tools/shaderc/shaderc.cpp
+++ b/tools/shaderc/shaderc.cpp
@@ -180,6 +180,7 @@ namespace bgfx
 		"i_data2",
 		"i_data3",
 		"i_data4",
+		NULL
 	};
 
 	Options::Options()