diff --git a/sci-libs/coinor-cppad/coinor-cppad-20210000.5.ebuild b/sci-libs/coinor-cppad/coinor-cppad-20210000.5-r1.ebuild
similarity index 98%
rename from sci-libs/coinor-cppad/coinor-cppad-20210000.5.ebuild
rename to sci-libs/coinor-cppad/coinor-cppad-20210000.5-r1.ebuild
index b0f442dd2f2c0..1fcf5fe358b0d 100644
--- a/sci-libs/coinor-cppad/coinor-cppad-20210000.5.ebuild
+++ b/sci-libs/coinor-cppad/coinor-cppad-20210000.5-r1.ebuild
@@ -21,7 +21,7 @@ RESTRICT="adolc? ( test ) ipopt? ( test )"
 
 # No need for RDEPEND.
 DEPEND="
-	dev-libs/boost[threads]
+	dev-libs/boost[threads(+)]
 	adolc? ( sci-libs/adolc )
 	eigen? ( dev-cpp/eigen )
 	ipopt? ( sci-libs/ipopt )"