diff --git a/0002-escape-optional-splashsrc-expansion.patch b/0002-escape-optional-splashsrc-expansion.patch
new file mode 100644
index 0000000..13f2e1e
--- /dev/null
+++ b/0002-escape-optional-splashsrc-expansion.patch
@@ -0,0 +1,11 @@
+--- data/systemd/v4l2-relayd@.service.orig	2026-06-15 12:00:00.000000000 -0500
++++ data/systemd/v4l2-relayd@.service	2026-06-15 12:00:00.000000000 -0500
+@@ -14,7 +14,7 @@
+ ExecCondition=/usr/bin/test -n "$HEIGHT"
+ ExecCondition=/usr/bin/test -n "$FRAMERATE"
+ ExecCondition=/usr/bin/test -n "${CARD_LABEL}"
+-ExecStart=/bin/sh -c 'DEVICE=$(grep -l -m1 -E "^${CARD_LABEL}$" /sys/devices/virtual/video4linux/*/name | cut -d/ -f6); exec /usr/bin/v4l2-relayd -i "${VIDEOSRC}" $${SPLASHSRC:+-s "${SPLASHSRC}"} -o "appsrc name=appsrc caps=video/x-raw,format=${FORMAT},width=${WIDTH},height=${HEIGHT},framerate=${FRAMERATE} ! videoconvert ! v4l2sink name=v4l2sink device=/dev/$${DEVICE}" $EXTRA_OPTS'
++ExecStart=/bin/sh -c 'DEVICE=$(grep -l -m1 -E "^${CARD_LABEL}$" /sys/devices/virtual/video4linux/*/name | cut -d/ -f6); exec /usr/bin/v4l2-relayd -i "${VIDEOSRC}" $${SPLASHSRC:+-s "$${SPLASHSRC}"} -o "appsrc name=appsrc caps=video/x-raw,format=${FORMAT},width=${WIDTH},height=${HEIGHT},framerate=${FRAMERATE} ! videoconvert ! v4l2sink name=v4l2sink device=/dev/$${DEVICE}" $EXTRA_OPTS'
+ Restart=always
+ PrivateNetwork=yes
+ PrivateTmp=yes
diff --git a/PKGBUILD b/PKGBUILD
index 4c74000..b276a5f 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -16,13 +16,16 @@ depends=(
 )
 makedepends=('git')
 source=("https://gitlab.com/vicamo/v4l2-relayd/-/archive/upstream/${pkgver}/v4l2-relayd-upstream-${pkgver}.tar.gz"
-        "0001-reset-output-on-idle.patch")
+        "0001-reset-output-on-idle.patch"
+        "0002-escape-optional-splashsrc-expansion.patch")
 sha256sums=('0c063edf18dcc6edcdef46e695128cfc2b2d60964ea8538c7e79a2454310c53d'
+            'SKIP'
             'SKIP')

 prepare() {
   cd "$srcdir/${pkgname}-upstream-${pkgver}"
   patch -p0 < "$srcdir/0001-reset-output-on-idle.patch"
+  patch -p0 < "$srcdir/0002-escape-optional-splashsrc-expansion.patch"
 }

 build() {