diff --git a/src/krylov_phiv_adaptive.jl b/src/krylov_phiv_adaptive.jl
index a981472..9ab8787 100644
--- a/src/krylov_phiv_adaptive.jl
+++ b/src/krylov_phiv_adaptive.jl
@@ -31,7 +31,7 @@ intuitive interface (vector `b` instead of a n-by-1 matrix `B`).
     arXiv:0907.4631.
 """
 function expv_timestep(ts::Vector{tType},
-A, b; kwargs...) where {tType <: Real}
+        A, b; kwargs...) where {tType <: Real}
     U = similar(b, size(A, 1), length(ts))
     expv_timestep!(U, ts, A, b; kwargs...)
 end