diff --git a/pkgs/applications/science/math/giac/default.nix b/pkgs/applications/science/math/giac/default.nix
index dd92e264889..f6e1deb8606 100644
--- a/pkgs/applications/science/math/giac/default.nix
+++ b/pkgs/applications/science/math/giac/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, fetchpatch, texlive, bison, flex
-, gmp, mpfr, pari, ntl, gsl, blas, mpfi, liblapackWithAtlas
+, gmp, mpfr, pari, ntl, gsl, blas, mpfi
 , readline, gettext, libpng, libao, gfortran, perl
 , enableGUI ? false, libGLU_combined ? null, xorg ? null, fltk ? null
 }:
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   # perl is only needed for patchShebangs fixup.
   buildInputs = [
-    gmp mpfr pari ntl gsl blas mpfi liblapackWithAtlas
+    gmp mpfr pari ntl gsl blas mpfi
     readline gettext libpng libao perl
     # gfortran.cc default output contains static libraries compiled without -fPIC
     # we want libgfortran.so.3 instead