diff --git a/dev-lang/mono/mono-4.9.0.729.ebuild b/dev-lang/mono/mono-4.9.0.729.ebuild
index 1f5c88d25edab..6149fa4941e3b 100644
--- a/dev-lang/mono/mono-4.9.0.729.ebuild
+++ b/dev-lang/mono/mono-4.9.0.729.ebuild
@@ -29,6 +29,7 @@ DEPEND="${COMMONDEPEND}
 	sys-devel/bc
 	virtual/yacc
 	pax_kernel? ( sys-apps/elfix )
+	dev-util/cmake
 	!dev-lang/mono-basic
 "