diff --git a/Phosphophyllite b/Phosphophyllite
index e4685db..3c7d068 160000
--- a/Phosphophyllite
+++ b/Phosphophyllite
@@ -1 +1 @@
-Subproject commit e4685db6443344fc3ac1b9b844a7fc5f4ee9863c
+Subproject commit 3c7d068aa849d71c2dc8597a968e2ee6cb5fd275
diff --git a/src/main/java/net/roguelogix/quartz/internal/common/InternalMesh.java b/src/main/java/net/roguelogix/quartz/internal/common/InternalMesh.java
index a4c1ad8..8363e78 100644
--- a/src/main/java/net/roguelogix/quartz/internal/common/InternalMesh.java
+++ b/src/main/java/net/roguelogix/quartz/internal/common/InternalMesh.java
@@ -8,6 +8,7 @@
 import me.jellysquid.mods.sodium.client.render.vertex.VertexConsumerTracker;
 import net.minecraft.client.renderer.MultiBufferSource;
 import net.minecraft.client.renderer.RenderType;
+import net.roguelogix.phosphophyllite.registry.ClientOnly;
 import net.roguelogix.phosphophyllite.registry.OnModLoad;
 import net.roguelogix.phosphophyllite.util.NonnullDefault;
 import net.roguelogix.quartz.Mesh;
@@ -75,6 +76,7 @@ private static class Vertex {
             int lightmapU = 0, lightmapV = 0;
         }
         
+        @ClientOnly
         private static class BufferBuilder implements VertexConsumer {
             
             @OnModLoad