diff --git a/srcpkgs/pulseaudio/patches/fix-expression-with-side-effect-in-pa_assert.patch b/srcpkgs/pulseaudio/patches/fix-expression-with-side-effect-in-pa_assert.patch
new file mode 100644
index 0000000000..eff6b1c140
--- /dev/null
+++ b/srcpkgs/pulseaudio/patches/fix-expression-with-side-effect-in-pa_assert.patch
@@ -0,0 +1,79 @@
+From e1899245703f1dfa3220af465046c287a5f1c2ba Mon Sep 17 00:00:00 2001
+From: "Igor V. Kovalenko" <igor.v.kovalenko@gmail.com>
+Date: Thu, 30 Sep 2021 08:40:35 +0300
+Subject: [PATCH] Fix expression with side effect in pa_assert
+
+Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/641>
+---
+ src/modules/bluetooth/module-bluez5-device.c | 4 ++--
+ src/pulsecore/card.c                         | 4 ++--
+ src/pulsecore/core.c                         | 4 ++--
+ src/pulsecore/dbus-util.c                    | 2 +-
+ 4 files changed, 7 insertions(+), 7 deletions(-)
+
+diff --git a/src/modules/bluetooth/module-bluez5-device.c b/src/modules/bluetooth/module-bluez5-device.c
+index 9774be5cc..afbb7e3fa 100644
+--- a/src/modules/bluetooth/module-bluez5-device.c
++++ b/src/modules/bluetooth/module-bluez5-device.c
+@@ -2513,10 +2513,10 @@ static int bluez5_device_message_handler(const char *object_path, const char *me
+     pa_bluetooth_profile_t profile;
+     const pa_a2dp_endpoint_conf *endpoint_conf;
+     const char *codec_name;
+-    struct userdata *u;
++    struct userdata *u = userdata;
+     bool is_a2dp_sink;
+ 
+-    pa_assert(u = (struct userdata *)userdata);
++    pa_assert(u);
+     pa_assert(message);
+     pa_assert(response);
+ 
+diff --git a/src/pulsecore/card.c b/src/pulsecore/card.c
+index 23b347b59..4f5997d2c 100644
+--- a/src/pulsecore/card.c
++++ b/src/pulsecore/card.c
+@@ -467,10 +467,10 @@ int pa_card_suspend(pa_card *c, bool suspend, pa_suspend_cause_t cause) {
+ }
+ 
+ static int card_message_handler(const char *object_path, const char *message, const pa_json_object *parameters, char **response, void *userdata) {
+-    pa_card *c;
++    pa_card *c = userdata;
+     char *message_handler_path;
+ 
+-    pa_assert(c = (pa_card *) userdata);
++    pa_assert(c);
+     pa_assert(message);
+     pa_assert(response);
+ 
+diff --git a/src/pulsecore/core.c b/src/pulsecore/core.c
+index 174d0650e..132f08bbb 100644
+--- a/src/pulsecore/core.c
++++ b/src/pulsecore/core.c
+@@ -86,9 +86,9 @@ static char *message_handler_list(pa_core *c) {
+ }
+ 
+ static int core_message_handler(const char *object_path, const char *message, const pa_json_object *parameters, char **response, void *userdata) {
+-    pa_core *c;
++    pa_core *c = userdata;
+ 
+-    pa_assert(c = (pa_core *) userdata);
++    pa_assert(c);
+     pa_assert(message);
+     pa_assert(response);
+     pa_assert(pa_safe_streq(object_path, "/core"));
+diff --git a/src/pulsecore/dbus-util.c b/src/pulsecore/dbus-util.c
+index 7d550204e..466a882d8 100644
+--- a/src/pulsecore/dbus-util.c
++++ b/src/pulsecore/dbus-util.c
+@@ -737,7 +737,7 @@ pa_proplist *pa_dbus_get_proplist_arg(DBusConnection *c, DBusMessage *msg, DBusM
+     pa_assert(msg);
+     pa_assert(iter);
+ 
+-    pa_assert(signature = dbus_message_iter_get_signature(iter));
++    pa_assert_se(signature = dbus_message_iter_get_signature(iter));
+     pa_assert_se(pa_streq(signature, "a{say}"));
+ 
+     dbus_free(signature);
+-- 
+GitLab
+
diff --git a/srcpkgs/pulseaudio/template b/srcpkgs/pulseaudio/template
index f1f88d7fb0..685154e8c0 100644
--- a/srcpkgs/pulseaudio/template
+++ b/srcpkgs/pulseaudio/template
@@ -1,7 +1,7 @@
 # Template file for 'pulseaudio'
 pkgname=pulseaudio
 version=15.0
-revision=2
+revision=3
 build_style=meson
 configure_args="-Djack=enabled -Dlirc=disabled -Dhal-compat=false -Dorc=enabled
  -Dgtk=disabled -Dsystemd=disabled -Dwebrtc-aec=enabled