diff --git a/src/solvers/dgsem_unstructured/dg_2d.jl b/src/solvers/dgsem_unstructured/dg_2d.jl
index 7b8dafdddd..b12a96c4c3 100644
--- a/src/solvers/dgsem_unstructured/dg_2d.jl
+++ b/src/solvers/dgsem_unstructured/dg_2d.jl
@@ -357,9 +357,9 @@ function calc_boundary_flux_by_type!(cache, t, BCs::Tuple{}, BC_indices::Tuple{}
     nothing
 end
 
-function calc_boundary_flux!(cache, t, boundary_condition, boundary_indexing,
+function calc_boundary_flux!(cache, t, boundary_condition::BC, boundary_indexing,
                              mesh::UnstructuredMesh2D, equations,
-                             surface_integral, dg::DG)
+                             surface_integral, dg::DG) where {BC}
     @unpack surface_flux_values = cache.elements
     @unpack element_id, element_side_id = cache.boundaries
 
diff --git a/test/test_threaded.jl b/test/test_threaded.jl
index 2337d73f30..b13b5d0f5f 100644
--- a/test/test_threaded.jl
+++ b/test/test_threaded.jl
@@ -312,11 +312,7 @@ Trixi.mpi_isroot() && isdir(outdir) && rm(outdir, recursive=true)
         t = sol.t[end]
         u_ode = sol.u[end]
         du_ode = similar(u_ode)
-        if (Threads.nthreads() < 2) || (VERSION < v"1.9")
-          @test (@allocated Trixi.rhs!(du_ode, u_ode, semi, t)) < 5000
-        else
-          @test_broken (@allocated Trixi.rhs!(du_ode, u_ode, semi, t)) < 5000
-        end
+        @test (@allocated Trixi.rhs!(du_ode, u_ode, semi, t)) < 5000
       end
     end