diff --git a/src/basic_types.hpp b/src/basic_types.hpp
index f1f07878a533..16dedfc2f941 100644
--- a/src/basic_types.hpp
+++ b/src/basic_types.hpp
@@ -41,6 +41,7 @@ using Real = double;
 struct IndexRange {
   int s = 0; /// Starting Index (inclusive)
   int e = 0; /// Ending Index (inclusive)
+  operator std::pair<int, int>() const {return {s, e};}
 };
 
 // Enum speficying whether or not you requested a flux variable in