diff --git a/src/Batsrus.jl b/src/Batsrus.jl
index 5abe5ad1..bc704ebc 100644
--- a/src/Batsrus.jl
+++ b/src/Batsrus.jl
@@ -8,7 +8,7 @@ using Printf, Reexport, Requires
 using Parsers
 using Interpolations: cubic_spline_interpolation, BSpline, Linear, scale, interpolate
 import NaturalNeighbours as NN
-using StaticArrays: SVector, @SMatrix, SA, MVector
+using StaticArrays: SVector, @SMatrix, SA
 
 export BATS,
    load, readlogdata, readtecdata, showhead, # io
diff --git a/src/io.jl b/src/io.jl
index be4756e6..35a5ec35 100644
--- a/src/io.jl
+++ b/src/io.jl
@@ -328,7 +328,7 @@ function getfilesize(fileID::IOStream, lenstr::Int32, ::Val{Real4Bat})
    tmp = read(fileID, Int32)
    nw = read(fileID, Int32)
    skip(fileID, 2*TAG)
-   nx = MVector{Int(ndim), Int32}(undef)
+   nx = Vector{Int32}(undef, ndim)
    read!(fileID, nx)
    skip(fileID, 2*TAG)
    if tmp > 0
@@ -353,7 +353,7 @@ function getfilesize(fileID::IOStream, lenstr::Int32, ::Val{Real8Bat})
    tmp = read(fileID, Int32)
    nw = read(fileID, Int32)
    skip(fileID, 2*TAG)
-   nx = MVector{Int(ndim), Int32}(undef)
+   nx = Vector{Int32}(undef, ndim)
    read!(fileID, nx)
    skip(fileID, 2*TAG)
    if tmp > 0