diff --git a/pkgs/development/libraries/science/math/arpack/default.nix b/pkgs/development/libraries/science/math/arpack/default.nix
index 057a2d4b397..0b927bb3eac 100644
--- a/pkgs/development/libraries/science/math/arpack/default.nix
+++ b/pkgs/development/libraries/science/math/arpack/default.nix
@@ -13,13 +13,15 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ cmake ];
-  buildInputs = [ gfortran blas lapack eigen ];
+  buildInputs = assert (blas.isILP64 == lapack.isILP64); [
+    gfortran
+    blas
+    lapack
+    eigen
+  ];
 
   doCheck = true;
 
-  BLAS_LIBS = "-L${blas}/lib -lblas";
-  LAPACK_LIBS = "-L${lapack}/lib -llapack";
-
   cmakeFlags = [
     "-DBUILD_SHARED_LIBS=ON"
     "-DINTERFACE64=${stdenv.lib.optionalString blas.isILP64 "1"}"