diff --git a/Src/Base/AMReX_Box.H b/Src/Base/AMReX_Box.H
index 586fc8d17b..058d44d772 100644
--- a/Src/Base/AMReX_Box.H
+++ b/Src/Base/AMReX_Box.H
@@ -1908,7 +1908,7 @@ struct BoxIndexer
     }
 
     [[nodiscard]] AMREX_GPU_HOST_DEVICE AMREX_FORCE_INLINE
-    IntVect operator() (std::uint64_t icell) const
+    IntVect intVect (std::uint64_t icell) const
     {
         return {int(icell)+lo};
     }