diff --git a/var/spack/repos/builtin/packages/superlu-dist/package.py b/var/spack/repos/builtin/packages/superlu-dist/package.py
index e4ccfe36656..4431541a7d7 100644
--- a/var/spack/repos/builtin/packages/superlu-dist/package.py
+++ b/var/spack/repos/builtin/packages/superlu-dist/package.py
@@ -93,8 +93,8 @@ def append_from_variant(*args):
         append_define("CMAKE_CXX_COMPILER", spec["mpi"].mpicxx)
         append_define("CMAKE_INSTALL_LIBDIR", self.prefix.lib)
         append_define("CMAKE_INSTALL_BINDIR", self.prefix.bin)
-        append_define("TPL_BLAS_LIBRARIES", spec["blas"].libs)
-        append_define("TPL_LAPACK_LIBRARIES", spec["lapack"].libs)
+        append_define("TPL_BLAS_LIBRARIES", spec["blas"].libs.ld_flags)
+        append_define("TPL_LAPACK_LIBRARIES", spec["lapack"].libs.ld_flags)
         append_define("TPL_ENABLE_LAPACKLIB", True)
         append_define("USE_XSDK_DEFAULTS", True)