diff --git a/internal/rosa/all.go b/internal/rosa/all.go
index dd558b48..3c1e902f 100644
--- a/internal/rosa/all.go
+++ b/internal/rosa/all.go
@@ -166,6 +166,7 @@ const (
 	XCB
 	XCBProto
 	XDGDBusProxy
+	XExtProto
 	XZ
 	Xproto
 	Zlib
diff --git a/internal/rosa/x.go b/internal/rosa/x.go
index 37fbba27..0a4942c7 100644
--- a/internal/rosa/x.go
+++ b/internal/rosa/x.go
@@ -90,6 +90,37 @@ func init() {
 	}
 }
 
+func (t Toolchain) newXExtProto() (pkg.Artifact, string) {
+	const (
+		version  = "7.3.0"
+		checksum = "4E3cMHAOVDb-h2M0ascAPU51YFNDy0xB5ih-Zw_8KK9y0aO9DskyGtvLk8zKsSUc"
+	)
+	return t.NewPackage("xextproto", version, newFromGitLab(
+		"gitlab.freedesktop.org",
+		"xorg/proto/xextproto",
+		"xextproto-"+version,
+		checksum,
+	), nil, &MakeHelper{
+		Generate: "NOCONFIGURE=1 ./autogen.sh",
+	},
+		Automake,
+		PkgConfig,
+
+		utilMacros,
+	), version
+}
+func init() {
+	artifactsM[XExtProto] = Metadata{
+		f: Toolchain.newXExtProto,
+
+		Name:        "xextproto",
+		Description: "X Protocol Extensions",
+		Website:     "https://gitlab.freedesktop.org/xorg/proto/xextproto",
+
+		ID: 13647,
+	}
+}
+
 func (t Toolchain) newLibXau() (pkg.Artifact, string) {
 	const (
 		version  = "1.0.12"