diff --git a/src/CTBase.jl b/src/CTBase.jl
index a93c210b..caedb15e 100644
--- a/src/CTBase.jl
+++ b/src/CTBase.jl
@@ -151,6 +151,7 @@ export variable!, time!, constraint!, dynamics!, objective!, state!, control!, r
 export is_time_independent, is_time_dependent, is_min, is_max, is_variable_dependent, is_variable_independent
 export nlp_constraints, constraints_labels
 export has_free_final_time, has_free_initial_time, has_lagrange_cost, has_mayer_cost
+export dim_boundary_conditions, dim_control_constraints, dim_state_constraints, dim_variable_constraints, dim_mixed_constraints, dim_path_constraints, dim_control_box, dim_state_box, dim_variable_box
 
 # solution
 export OptimalControlSolution