1 files changed, 1 insertions, 0 deletions
diff --git a/extern/mantaflow/preprocessed/grid.h b/extern/mantaflow/preprocessed/grid.h
index cf942a19e9a..3d6f8558b8f 100644
--- a/extern/mantaflow/preprocessed/grid.h
+++ b/extern/mantaflow/preprocessed/grid.h
@@ -596,6 +596,7 @@ template<class T> class Grid : public GridBase {
   //! set data
   inline void set(int i, int j, int k, T &val)
   {
+    DEBUG_ONLY(checkIndex(i, j, k));
     mData[index(i, j, k)] = val;
   }