diff --git a/src/trilqr.jl b/src/trilqr.jl
index 03b7ff482..a4341f8a1 100644
--- a/src/trilqr.jl
+++ b/src/trilqr.jl
@@ -168,7 +168,7 @@ kwargs_trilqr = (:transfer_to_usymcg, :atol, :rtol, :itmax, :timemax, :verbose,
     uₖ .= s₀ ./ γₖ              # u₁ = (c - Aᴴy₀) / γ₁
     cₖ₋₁ = cₖ = -one(T)         # Givens cosines used for the LQ factorization of Tₖ
     sₖ₋₁ = sₖ = zero(FC)        # Givens sines used for the LQ factorization of Tₖ
-    d̅ .= zero(FC)               # Last column of D̅ₖ = Uₖ(Qₖ)ᴴ
+    kfill!(d̅, zero(FC))         # Last column of D̅ₖ = Uₖ(Qₖ)ᴴ
     ζₖ₋₁ = ζbarₖ = zero(FC)     # ζₖ₋₁ and ζbarₖ are the last components of z̅ₖ = (L̅ₖ)⁻¹β₁e₁
     ζₖ₋₂ = ηₖ = zero(FC)        # ζₖ₋₂ and ηₖ are used to update ζₖ₋₁ and ζbarₖ
     δbarₖ₋₁ = δbarₖ = zero(FC)  # Coefficients of Lₖ₋₁ and L̅ₖ modified over the course of two iterations