diff --git a/src/SciMLBase.jl b/src/SciMLBase.jl
index b7401404b..26e31cdcf 100644
--- a/src/SciMLBase.jl
+++ b/src/SciMLBase.jl
@@ -705,6 +705,7 @@ include("problems/pde_problems.jl")
 include("problems/problem_utils.jl")
 include("problems/problem_traits.jl")
 include("problems/problem_interface.jl")
+include("problems/optimization_problems.jl")
 
 include("solutions/basic_solutions.jl")
 include("solutions/nonlinear_solutions.jl")