diff --git a/thirdparty/vhacd/inc/vhacdVolume.h b/thirdparty/vhacd/inc/vhacdVolume.h
index 8c47fa1e2c..c445f20122 100644
--- a/thirdparty/vhacd/inc/vhacdVolume.h
+++ b/thirdparty/vhacd/inc/vhacdVolume.h
@@ -316,13 +316,13 @@ void Volume::Voxelize(const T* const points, const uint32_t stridePoints, const
 
     double d[3] = { m_maxBB[0] - m_minBB[0], m_maxBB[1] - m_minBB[1], m_maxBB[2] - m_minBB[2] };
     double r;
-    if (d[0] > d[1] && d[0] > d[2]) {
+    if (d[0] >= d[1] && d[0] >= d[2]) {
         r = d[0];
         m_dim[0] = dim;
         m_dim[1] = 2 + static_cast<size_t>(dim * d[1] / d[0]);
         m_dim[2] = 2 + static_cast<size_t>(dim * d[2] / d[0]);
     }
-    else if (d[1] > d[0] && d[1] > d[2]) {
+    else if (d[1] >= d[0] && d[1] >= d[2]) {
         r = d[1];
         m_dim[1] = dim;
         m_dim[0] = 2 + static_cast<size_t>(dim * d[0] / d[1]);