diff --git a/src/derivatives.jl b/src/derivatives.jl
index 2cc5d33e..baf0d920 100644
--- a/src/derivatives.jl
+++ b/src/derivatives.jl
@@ -20,8 +20,6 @@ function _extrapolate_derivative_left(A, t, order)
     elseif extrapolation_left == ExtrapolationType.Constant
         zero(first(A.u) / one(A.t[1]))
     elseif extrapolation_left == ExtrapolationType.Linear
-        _derivative(A, first(A.t), 1)
-        zero(first(A.u) / one(A.t[1]))
         (order == 1) ? _derivative(A, first(A.t), 1) : zero(first(A.u) / one(A.t[1]))
     elseif extrapolation_left == ExtrapolationType.Extension
         (order == 1) ? _derivative(A, t, length(A.t)) :
@@ -66,7 +64,7 @@ function _extrapolate_derivative_right(A, t, order)
                 _derivative(A, t, A.iguesser)
             end, t_)
     else
-        # extrapolation_left == ExtrapolationType.Reflective
+        # extrapolation_right == ExtrapolationType.Reflective
         t_, n = transformation_reflective(A, t)
         sign = iseven(n) ? -1 : 1
         (order == 1) ? sign * _derivative(A, t_, A.iguesser) :
@@ -314,4 +312,4 @@ function _derivative(
     out += Δt₀^2 *
            (3c₁ + (3Δt₁ + Δt₀) * c₂ + (3Δt₁^2 + Δt₀ * 2Δt₁) * c₃)
     out
-end
\ No newline at end of file
+end
diff --git a/src/integral_inverses.jl b/src/integral_inverses.jl
index 22fde725..075da29f 100644
--- a/src/integral_inverses.jl
+++ b/src/integral_inverses.jl
@@ -119,4 +119,4 @@ function _interpolate(
         idx_ = get_idx(A, t, idx; side = :first, lb = 1, ub_shift = 0)
     end
     A.u[idx] + (t - A.t[idx]) / A.itp.u[idx_]
-end
\ No newline at end of file
+end
diff --git a/src/interpolation_methods.jl b/src/interpolation_methods.jl
index f8cdce89..73e240d1 100644
--- a/src/interpolation_methods.jl
+++ b/src/interpolation_methods.jl
@@ -335,4 +335,4 @@ function _interpolate(
     c₁, c₂, c₃ = get_parameters(A, idx)
     out += Δt₀^3 * (c₁ + Δt₁ * (c₂ + c₃ * Δt₁))
     out
-end
\ No newline at end of file
+end