diff --git a/accessibility/wl-gammarelay-rs/Makefile b/accessibility/wl-gammarelay-rs/Makefile
index 23d940c47196..0a2802cd9d23 100644
--- a/accessibility/wl-gammarelay-rs/Makefile
+++ b/accessibility/wl-gammarelay-rs/Makefile
@@ -1,18 +1,19 @@
 PORTNAME=	wl-gammarelay-rs
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.4.0
+PORTREVISION=	1
 CATEGORIES=	accessibility wayland
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Adjust color temperature/brightness under Wayland via DBus
 WWW=		https://github.com/MaxVerevkin/wl-gammarelay-rs
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENCE
 
 USES=		cargo
 USE_GITHUB=	yes
 GH_ACCOUNT=	MaxVerevkin
 PLIST_FILES=	bin/${PORTNAME}
 
 .include <bsd.port.mk>
diff --git a/accessibility/wl-gammarelay-rs/files/patch-rustbus-service b/accessibility/wl-gammarelay-rs/files/patch-rustbus-service
new file mode 100644
index 000000000000..09b8ab171a54
--- /dev/null
+++ b/accessibility/wl-gammarelay-rs/files/patch-rustbus-service
@@ -0,0 +1,21 @@
+https://github.com/MaxVerevkin/wl-gammarelay-rs/issues/22
+https://github.com/MaxVerevkin/rustbus-service/commit/681b783ff093
+
+--- ../rustbus-service-7401913977ccf665748b1f4dee033921e1c86afd/src/lib.rs.orig	2024-03-17 08:14:31 UTC
++++ ../rustbus-service-7401913977ccf665748b1f4dee033921e1c86afd/src/lib.rs
+@@ -114,7 +114,14 @@ impl<D: 'static> Service<D> {
+                 MessageType::Signal => {
+                     eprintln!("todo: handle signal: {:?}", msg.dynheader.member);
+                 }
+-                MessageType::Error => todo!(),
++                MessageType::Error => {
++                    let error_name = msg.dynheader.error_name.expect("error without error_name");
++                    let error_message = msg.body.parser().get::<&str>().ok();
++                    eprintln!(
++                        "dbus error: {error_name}: {}",
++                        error_message.unwrap_or("<no message>")
++                    );
++                }
+                 MessageType::Call => {
+                     if let Some(cb) = get_call_handler(&self.root, &msg) {
+                         cb(MethodContext {