diff --git a/sci-mathematics/ggnfs/ggnfs-0.77.1-r2.ebuild b/sci-mathematics/ggnfs/ggnfs-0.77.1-r2.ebuild
index 5f92618d36ad4..c110cabe74c13 100644
--- a/sci-mathematics/ggnfs/ggnfs-0.77.1-r2.ebuild
+++ b/sci-mathematics/ggnfs/ggnfs-0.77.1-r2.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2013 Gentoo Foundation
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=5
 
-inherit eutils
+inherit eutils toolchain-funcs
 
 DESCRIPTION="A suite of algorithms to help factoring large integers"
 # inactive old homepage exists, this is a fork