diff --git a/mex/sources/libkordersim/simulation.f08 b/mex/sources/libkordersim/simulation.f08
index ed50b644d..4b3385ec3 100644
--- a/mex/sources/libkordersim/simulation.f08
+++ b/mex/sources/libkordersim/simulation.f08
@@ -22,7 +22,7 @@
 module simulation
    use iso_fortran_env
    use tensors
-   use lapack
+   use blas
    use matlab_mex
    implicit none (type, external)