diff --git a/sci-mathematics/opensmt/opensmt-2.5.2.ebuild b/sci-mathematics/opensmt/opensmt-2.5.2.ebuild
index 5155579d655ce..ce988bcd05727 100644
--- a/sci-mathematics/opensmt/opensmt-2.5.2.ebuild
+++ b/sci-mathematics/opensmt/opensmt-2.5.2.ebuild
@@ -31,7 +31,7 @@ RDEPEND="
 "
 DEPEND="${RDEPEND}"
 BDEPEND="
-	sys-devel/bison
+	app-alternatives/yacc
 	app-alternatives/lex
 	test? ( dev-cpp/gtest )
 "