diff --git a/src/initialization.jl b/src/initialization.jl
index 83c4819c7..a29aea650 100644
--- a/src/initialization.jl
+++ b/src/initialization.jl
@@ -3,7 +3,7 @@
 
 A collection of all the data required for `OverrideInit`.
 """
-struct OverrideInitData{IProb, UIProb, IProbMap, IProbPmap}
+struct OverrideInitData{IProb, UIProb, IProbMap, IProbPmap, M}
     """
     The `AbstractNonlinearProblem` to solve for initialization.
     """
@@ -30,15 +30,25 @@ struct OverrideInitData{IProb, UIProb, IProbMap, IProbPmap}
     initialized will be returned as-is.
     """
     initializeprobpmap::IProbPmap
+    """
+    Additional metadata required by the creator of the initialization.
+    """
+    metadata::M
 
     function OverrideInitData(initprob::I, update_initprob!::J, initprobmap::K,
-            initprobpmap::L) where {I, J, K, L}
+            initprobpmap::L, metadata::M) where {I, J, K, L, M}
         @assert initprob isa
                 Union{SCCNonlinearProblem, NonlinearProblem, NonlinearLeastSquaresProblem}
-        return new{I, J, K, L}(initprob, update_initprob!, initprobmap, initprobpmap)
+        return new{I, J, K, L, M}(
+            initprob, update_initprob!, initprobmap, initprobpmap, metadata)
     end
 end
 
+function OverrideInitData(
+        initprob, update_initprob!, initprobmap, initprobpmap; metadata = nothing)
+    OverrideInitData(initprob, update_initprob!, initprobmap, initprobpmap, metadata)
+end
+
 """
     get_initial_values(prob, valp, f, alg, isinplace; kwargs...)
 
diff --git a/test/downstream/initialization.jl b/test/downstream/initialization.jl
index c5bbb2a44..6776ccb61 100644
--- a/test/downstream/initialization.jl
+++ b/test/downstream/initialization.jl
@@ -78,7 +78,6 @@ end
     @test occursin("Initialization status: OVERDETERMINED", sprint(summary, prob))
 end
 
-
 @testset "CheckInit" begin
     @testset "ODEProblem" begin
         function rhs(u, p, t)