diff --git a/src/main/resources/assets/flywheel/flywheel/shaders/context/world.glsl b/src/main/resources/assets/flywheel/flywheel/shaders/context/world.glsl
index 138c5aca9..51afad2eb 100644
--- a/src/main/resources/assets/flywheel/flywheel/shaders/context/world.glsl
+++ b/src/main/resources/assets/flywheel/flywheel/shaders/context/world.glsl
@@ -25,13 +25,13 @@ void FLWFinalizeWorldPos(inout vec4 worldPos) {
 #use "flywheel:core/lightutil.glsl"
 
 #define ALPHA_DISCARD 0.1
-//
-//#if defined(ALPHA_DISCARD)
-//#if defined(GL_ARB_conservative_depth)
-//layout (depth_greater) out float gl_FragDepth;
-//#endif
-//#endif
-
+// optimize discard usage
+#if defined(ALPHA_DISCARD)
+#if defined(GL_ARB_conservative_depth)
+#extension GL_ARB_conservative_depth : enable
+layout (depth_greater) out float gl_FragDepth;
+#endif
+#endif
 out vec4 fragColor;
 
 vec4 FLWBlockTexture(vec2 texCoords) {