diff --git a/src/gl/models/gl_voxels.cpp b/src/gl/models/gl_voxels.cpp
index c3ef4cd27e..62377c681e 100644
--- a/src/gl/models/gl_voxels.cpp
+++ b/src/gl/models/gl_voxels.cpp
@@ -387,6 +387,7 @@ void FVoxelModel::BuildVertexBuffer()
 
 		mVBuf->UnlockVertexBuffer();
 		mVBuf->UnlockIndexBuffer();
+		mNumIndices = mIndices.Size();
 
 		// delete our temporary buffers
 		mVertices.Clear();