diff --git a/ext/TrixiConvexClarabelExt.jl b/ext/TrixiConvexClarabelExt.jl
index 12f5f2525ae..5bfc991e626 100644
--- a/ext/TrixiConvexClarabelExt.jl
+++ b/ext/TrixiConvexClarabelExt.jl
@@ -31,7 +31,7 @@ function bisect_stability_polynomial()
 end
 
 function Trixi.solve_b_butcher_coeffs_unknown(num_stages, a_matrix, c, dt_opt,eig_vals; verbose)
-    
+    #TODO: Implement this
 end
 end # @muladd
 
diff --git a/ext/TrixiNLsolveExt.jl b/ext/TrixiNLsolveExt.jl
index 51dfd7843a8..5177c72dcba 100644
--- a/ext/TrixiNLsolveExt.jl
+++ b/ext/TrixiNLsolveExt.jl
@@ -75,7 +75,7 @@ end
 # Hairer, Wanner: Solving Ordinary Differential Equations 2
 function Trixi.solve_a_butcher_coeffs_unknown!(a_unknown, num_stages, monomial_coeffs,
                                                c_s2, c;
-                                               verbose, max_iter = 100000)
+                                               verbose, max_iter = 100000) #TODO: Add an argument of num_stage_evals here
 
     # Define the objective_function
     function objective_function!(c_eq, x)