diff --git a/client/common/common.c b/client/common/common.c
index 971f2cf..6bbfca2 100644
--- a/client/common/common.c
+++ b/client/common/common.c
@@ -309,7 +309,7 @@ do_getopt(struct client *client, int *argc, char **argv[])
                 client->grab = true;
                 break;
             case 'm':
-                client->monitor = strtol(optarg, NULL, 10);
+                client->monitor = (!strcmp(optarg, "all") ? -1 : strtol(optarg, NULL, 10));
                 break;
             case 'n':
                 client->no_overlap = true;
diff --git a/lib/renderers/wayland/wayland.c b/lib/renderers/wayland/wayland.c
index bf37028..1714a1b 100644
--- a/lib/renderers/wayland/wayland.c
+++ b/lib/renderers/wayland/wayland.c
@@ -241,16 +241,18 @@ recreate_windows(const struct bm_menu *menu, struct wayland *wayland)
 {
     destroy_windows(wayland);
 
-    size_t monitors = 0;
+    uint32_t monitors = 0;
     struct output *output;
     wl_list_for_each(output, &wayland->outputs, link)
         monitors++;
 
-    size_t monitor = 0;
+    uint32_t monitor = 0;
     wl_list_for_each(output, &wayland->outputs, link) {
-        if (menu->monitor < monitors && monitor != menu->monitor) {
-            ++monitor;
-            continue;
+        if (menu->monitor != (uint32_t)-1) {
+            if (menu->monitor < monitors && monitor != menu->monitor) {
+                ++monitor;
+                continue;
+            }
         }
 
         struct wl_surface *surface;
@@ -270,7 +272,7 @@ recreate_windows(const struct bm_menu *menu, struct wayland *wayland)
         window->max_height = output->height;
         window->render_pending = true;
         wl_list_insert(&wayland->windows, &window->link);
-        break;
+        if (menu->monitor != (uint32_t)-1) break;
     }
 
     set_overlap(menu, menu->overlap);
diff --git a/lib/renderers/x11/x11.c b/lib/renderers/x11/x11.c
index d5cfe51..6721f5b 100644
--- a/lib/renderers/x11/x11.c
+++ b/lib/renderers/x11/x11.c
@@ -177,7 +177,7 @@ set_monitor(const struct bm_menu *menu, uint32_t monitor)
 {
     struct x11 *x11 = menu->renderer->internal;
     assert(x11);
-    bm_x11_window_set_monitor(&x11->window, monitor);
+    bm_x11_window_set_monitor(&x11->window, (monitor != (uint32_t)-1 ? monitor : 0));
 }
 
 static void
diff --git a/man/bemenu.1 b/man/bemenu.1
index 5c6cf74..7e91291 100644
--- a/man/bemenu.1
+++ b/man/bemenu.1
@@ -121,6 +121,7 @@ These options are only available on backends specified in the parentheses
 .TP
 .BI \-m " INDEX" ", \-\-monitor=" INDEX
 (Wayland, X11) Specify \fIINDEX\fR of the monitor where the menu should appear.
+(Wayland) If index is \fI-1\fR or \fIall\fR then the menu will appear on all monitors.
 
 .TP
 .BI \-H " HEIGHT" ", \-\-line\-height=" HEIGHT