diff --git a/sway/sway.5.scd b/sway/sway.5.scd
index 4def2cbb1..11468d777 100644
--- a/sway/sway.5.scd
+++ b/sway/sway.5.scd
@@ -372,12 +372,29 @@ set|plus|minus|toggle <amount>
 *title_format* <format>
 	Sets the format of window titles. The following placeholders may be used:
 
-		%title - The title supplied by the window ++
-		%app_id - The wayland app ID (applicable to wayland windows only) ++
-		%class - The X11 classname (applicable to xwayland windows only) ++
-		%instance - The X11 instance (applicable to xwayland windows only) ++
-		%shell - The protocol the window is using (typically xwayland or
-			xdg_shell)
+	*%title*
+		The title supplied by the window
+
+	*%app_id*
+		The wayland app ID (applicable to wayland windows only)
+
+	*%class*
+		The X11 classname (applicable to xwayland windows only)
+
+	*%instance*
+		The X11 instance (applicable to xwayland windows only)
+
+	*%shell*
+		The protocol the window is using (typically xwayland or xdg_shell)
+
+	*%sandbox_engine*
+		The associated sandbox engine
+
+	*%sandbox_app_id*
+		The app ID provided by the associated sandbox engine
+
+	*%sandbox_instance_id*
+		The instance ID provided by the associated sandbox engine
 
 	This command is typically used with *for_window* criteria. For example:
 
diff --git a/sway/tree/container.c b/sway/tree/container.c
index 0288beacb..6ff4036fa 100644
--- a/sway/tree/container.c
+++ b/sway/tree/container.c
@@ -716,6 +716,15 @@ size_t parse_title_format(struct sway_container *container, char *buffer) {
 			} else if (has_prefix(next, "%shell")) {
 				len += append_prop(buffer, view_get_shell(container->view));
 				format += strlen("%shell");
+			} else if (has_prefix(next, "%sandbox_engine")) {
+				len += append_prop(buffer, view_get_sandbox_engine(container->view));
+				format += strlen("%sandbox_engine");
+			} else if (has_prefix(next, "%sandbox_app_id")) {
+				len += append_prop(buffer, view_get_sandbox_app_id(container->view));
+				format += strlen("%sandbox_app_id");
+			} else if (has_prefix(next, "%sandbox_instance_id")) {
+				len += append_prop(buffer, view_get_sandbox_instance_id(container->view));
+				format += strlen("%sandbox_instance_id");
 			} else {
 				lenient_strcat(buffer, "%");
 				++format;