diff --git a/meshers/blocky/voxel_blocky_library.h b/meshers/blocky/voxel_blocky_library.h
index e368e2b1..3807c97e 100644
--- a/meshers/blocky/voxel_blocky_library.h
+++ b/meshers/blocky/voxel_blocky_library.h
@@ -1,6 +1,7 @@
 #ifndef VOXEL_BLOCKY_LIBRARY_H
 #define VOXEL_BLOCKY_LIBRARY_H
 
+#include "../../util/thread/rw_lock.h"
 #include "../../util/dynamic_bitset.h"
 #include "voxel_blocky_model.h"
 #include <core/object/ref_counted.h>