diff --git a/scripts/shaderc.lua b/scripts/shaderc.lua
index 3f26ece15..1dc3cb575 100644
--- a/scripts/shaderc.lua
+++ b/scripts/shaderc.lua
@@ -130,6 +130,7 @@ project "glslang"
 
 	defines {
 		"ENABLE_OPT=1", -- spirv-tools
+		"ENABLE_HLSL=1",
 	}
 
 	includedirs {
@@ -216,11 +217,6 @@ project "glslang"
 			"-fno-strict-aliasing", -- glslang has bugs if strict aliasing is used.
 		}
 
-	configuration {}
-		defines {
-			"ENABLE_HLSL=1",
-		}
-
 	configuration {}
 
 project "glsl-optimizer"