diff --git a/dev-R/Matrix/Matrix-1.3.4.ebuild b/dev-R/Matrix/Matrix-1.3.4.ebuild
index 5b7e412961..7c7955b9e3 100644
--- a/dev-R/Matrix/Matrix-1.3.4.ebuild
+++ b/dev-R/Matrix/Matrix-1.3.4.ebuild
@@ -5,7 +5,7 @@ EAPI=7
 
 MYPV="$(ver_rs 2 -)"
 
-inherit R-packages
+inherit R-packages toolchain-funcs
 
 DESCRIPTION='Sparse and Dense Matrix Classes and Methods'
 KEYWORDS="~amd64"