diff --git a/include/micm/solver/solver.hpp b/include/micm/solver/solver.hpp
index 8d7dc2df1..f8fc816d0 100644
--- a/include/micm/solver/solver.hpp
+++ b/include/micm/solver/solver.hpp
@@ -77,6 +77,11 @@ namespace micm
       return state_parameters_.number_of_species_;
     }
 
+    std::size_t GetNumberOfReactions() const
+    {
+      return state_parameters_.number_of_rate_constants_;
+    }
+
     StatePolicy GetState() const
     {
       auto state = std::move(StatePolicy(state_parameters_));