diff --git a/pipewire-jack/src/pipewire-jack.c b/pipewire-jack/src/pipewire-jack.c
index 8ae8b23a2..2e82677bc 100644
--- a/pipewire-jack/src/pipewire-jack.c
+++ b/pipewire-jack/src/pipewire-jack.c
@@ -3480,7 +3480,7 @@ jack_client_t * jack_client_open (const char *client_name,
 	client->info.change_mask = 0;
 
 	client->show_monitor = pw_properties_get_bool(client->props, "jack.show-monitor", true);
-	client->merge_monitor = pw_properties_get_bool(client->props, "jack.merge-monitor", false);
+	client->merge_monitor = pw_properties_get_bool(client->props, "jack.merge-monitor", true);
 	client->short_name = pw_properties_get_bool(client->props, "jack.short-name", false);
 	client->filter_name = pw_properties_get_bool(client->props, "jack.filter-name", false);
 	client->filter_char = ' ';
diff --git a/src/daemon/jack.conf.in b/src/daemon/jack.conf.in
index f1fa6bc6b..95a86cb49 100644
--- a/src/daemon/jack.conf.in
+++ b/src/daemon/jack.conf.in
@@ -70,7 +70,7 @@ jack.properties = {
      #node.lock-quantum  = true
      #node.force-quantum = 0
      #jack.show-monitor  = true
-     #jack.merge-monitor = false
+     #jack.merge-monitor = true
      #jack.short-name    = false
      #jack.filter-name   = false
      #jack.filter-char   = " "
@@ -89,8 +89,7 @@ jack.properties = {
 
 # client specific properties
 jack.rules = [
-    {
-        matches = [
+    {   matches = [
             {
                 # all keys must match the value. ~ starts regex.
                 #client.name                = "Carla"
@@ -104,18 +103,14 @@ jack.rules = [
             }
         }
     }
-    { matches = [
-            { application.process.binary = "jack_bufsize" }
-        ]
+    {   matches = [ { application.process.binary = "jack_bufsize" } ]
         actions = {
             update-props = {
                 jack.global-buffer-size = true   # quantum set globally using metadata
             }
         }
     }
-    { matches = [
-            { application.process.binary = "qsynth" }
-        ]
+    {   matches = [ { application.process.binary = "qsynth" } ]
         actions = {
             update-props = {
                 node.pause-on-idle = false  # makes audio fade out when idle
@@ -123,4 +118,11 @@ jack.rules = [
             }
         }
     }
+    {   matches = [ { client.name = "Mixxx" } ]
+        actions = {
+            update-props = {
+                jack.merge-monitor = false
+            }
+        }
+    }
 ]