diff --git a/ext/SciMLBaseZygoteExt.jl b/ext/SciMLBaseZygoteExt.jl
index b8952f910..13eb86d13 100644
--- a/ext/SciMLBaseZygoteExt.jl
+++ b/ext/SciMLBaseZygoteExt.jl
@@ -7,7 +7,8 @@ using SciMLBase
 using SciMLBase: ODESolution, remake,
                  getobserved, build_solution, EnsembleSolution,
                  NonlinearSolution, AbstractTimeseriesSolution
-using SymbolicIndexingInterface: symbolic_type, NotSymbolic, variable_index, is_observed, observed, parameter_values
+using SymbolicIndexingInterface: symbolic_type, NotSymbolic, variable_index, is_observed,
+                                 observed, parameter_values
 using RecursiveArrayTools
 
 # This method resolves the ambiguity with the pullback defined in
@@ -113,7 +114,7 @@ end
             y, back = Zygote.pullback(VA) do sol
                 f = observed(sol, sym)
                 p = parameter_values(sol)
-                f.(sol.u,Ref(p), sol.t)
+                f.(sol.u, Ref(p), sol.t)
             end
             gs = back(Δ)
             (gs[1], nothing)
@@ -133,7 +134,7 @@ function obs_grads(VA, sym, obss_idx, Δ)
         getindex.(Ref(sol), sym[obss_idx])
     end
     Dprime = reduce(hcat, Δ)
-    Dobss = eachrow(Dprime[obss_idx, :])    
+    Dobss = eachrow(Dprime[obss_idx, :])
     back(Dobss)
 end
 
@@ -141,7 +142,7 @@ function obs_grads(VA, sym, ::Nothing, Δ)
     Zygote.nt_nothing(VA)
 end
 
-function not_obs_grads(VA::ODESolution{T}, sym, not_obss_idx, i, Δ) where T
+function not_obs_grads(VA::ODESolution{T}, sym, not_obss_idx, i, Δ) where {T}
     Δ′ = map(enumerate(VA.u)) do (t_idx, us)
         map(enumerate(us)) do (u_idx, u)
             if u_idx in i
diff --git a/test/downstream/observables_autodiff.jl b/test/downstream/observables_autodiff.jl
index bfd96b85f..554b6e6f9 100644
--- a/test/downstream/observables_autodiff.jl
+++ b/test/downstream/observables_autodiff.jl
@@ -31,8 +31,8 @@ sol = solve(prob, Tsit5())
     gs, = gradient(sol) do sol
         sum(sol[sys.w])
     end
-    du_ = [0., 1., 1., 1.]
-    du = [du_ for _ = sol.u]
+    du_ = [0.0, 1.0, 1.0, 1.0]
+    du = [du_ for _ in sol.u]
     @test du == gs.u
 end
 
@@ -100,15 +100,15 @@ function create_model(; C₁ = 3e-5, C₂ = 1e-6)
     @named ampermeter = MSL.Electrical.CurrentSensor()
 
     eqs = [connect(input_signal.output, source.V)
-        connect(source.p, capacitor1.n, capacitor2.n)
-        connect(source.n, resistor1.p, resistor2.p, ground.g)
-        connect(resistor1.n, capacitor1.p, ampermeter.n)
-        connect(resistor2.n, capacitor2.p, ampermeter.p)]
+           connect(source.p, capacitor1.n, capacitor2.n)
+           connect(source.n, resistor1.p, resistor2.p, ground.g)
+           connect(resistor1.n, capacitor1.p, ampermeter.n)
+           connect(resistor2.n, capacitor2.p, ampermeter.p)]
 
     @named circuit_model = ODESystem(eqs, t,
         systems = [
             resistor1, resistor2, capacitor1, capacitor2,
-            source, input_signal, ground, ampermeter,
+            source, input_signal, ground, ampermeter
         ])
 end