diff --git a/server/gameserver/navmeshbuilder.cc b/server/gameserver/navmeshbuilder.cc
index 4e4b0fa..0d0e96d 100644
--- a/server/gameserver/navmeshbuilder.cc
+++ b/server/gameserver/navmeshbuilder.cc
@@ -253,6 +253,7 @@ int NavMeshBuilder::RasterizeTileLayers(BuilderParams& builder_params,
         return 0;
     }
 
+    #if 0
     // (Optional) Mark areas.
     const ConvexVolume* vols = builder_params.gemo->GetConvexVolumes();
     for (int i  = 0; i < builder_params.gemo->GetConvexVolumeCount(); ++i) {
@@ -260,6 +261,7 @@ int NavMeshBuilder::RasterizeTileLayers(BuilderParams& builder_params,
                              vols[i].hmin, vols[i].hmax,
                              vols[i].areaMod, *rc.chf);
     }
+    #endif
 
     rc.lset = rcAllocHeightfieldLayerSet();
     if (!rc.lset) {
diff --git a/server/gameserver/navmeshhelper.h b/server/gameserver/navmeshhelper.h
index 6900102..65d53c9 100644
--- a/server/gameserver/navmeshhelper.h
+++ b/server/gameserver/navmeshhelper.h
@@ -227,8 +227,10 @@ class InputGeom
     const float* GetVerts() const { return nullptr; }
     int GetVertCount() const { return 0; }
     const rcChunkyTriMesh* GetChunkyMesh() { return nullptr; }
+    #if 0
     const ConvexVolume* GetConvexVolumes() { return nullptr; }
     int GetConvexVolumeCount() { return 0; }
+    #endif
 };
 
 struct BuilderParams