diff --git a/cage.c b/cage.c
index 75f0696..b733010 100644
--- a/cage.c
+++ b/cage.c
@@ -228,6 +228,9 @@ parse_args(struct cg_server *server, int argc, char *argv[])
 				server->output_mode = CAGE_MULTI_OUTPUT_MODE_LAST;
 			} else if (strcmp(optarg, "extend") == 0) {
 				server->output_mode = CAGE_MULTI_OUTPUT_MODE_EXTEND;
+			} else {
+				server->output_mode = CAGE_MULTI_OUTPUT_MODE_SPECIFIED;
+				server->output_name = optarg;
 			}
 			break;
 		case 's':
diff --git a/output.c b/output.c
index 465c0ed..992d6e1 100644
--- a/output.c
+++ b/output.c
@@ -13,6 +13,7 @@
 
 #include <assert.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 #include <wayland-server-core.h>
 #include <wlr/backend.h>
@@ -294,6 +295,10 @@ handle_new_output(struct wl_listener *listener, void *data)
 	if (server->output_mode == CAGE_MULTI_OUTPUT_MODE_LAST && wl_list_length(&server->outputs) > 1) {
 		struct cg_output *next = wl_container_of(output->link.next, next, link);
 		output_disable(next);
+	} else if (server->output_mode == CAGE_MULTI_OUTPUT_MODE_SPECIFIED &&
+		   strcmp(wlr_output->name, server->output_name) != 0) {
+		output_disable(output);
+		return;
 	}
 
 	if (!wlr_xcursor_manager_load(server->seat->xcursor_manager, wlr_output->scale)) {
diff --git a/server.h b/server.h
index 6e2fddf..bdb289f 100644
--- a/server.h
+++ b/server.h
@@ -15,6 +15,7 @@
 enum cg_multi_output_mode {
 	CAGE_MULTI_OUTPUT_MODE_EXTEND,
 	CAGE_MULTI_OUTPUT_MODE_LAST,
+	CAGE_MULTI_OUTPUT_MODE_SPECIFIED,
 };
 
 struct cg_server {
@@ -31,6 +32,7 @@ struct cg_server {
 	struct wl_list inhibitors;
 
 	enum cg_multi_output_mode output_mode;
+	char *output_name;
 	struct wlr_output_layout *output_layout;
 	struct wlr_scene *scene;
 	/* Includes disabled outputs; depending on the output_mode