diff --git a/CHANGELOG.md b/CHANGELOG.md
index a7cb54b2..7a69d1c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -102,10 +102,13 @@
   event reporting ([#2316][2316]).
 * Keypad escapes in the legacy keyboard protocol ignoring the shift
   modifier ([#2324][2324]).
+* Crash when querying the kitty notification protocol (OSC-99, with
+  `p=?`) ([#2335][2335]).
 
 [2307]: https://codeberg.org/dnkl/foot/issues/2307
 [2316]: https://codeberg.org/dnkl/foot/issues/2316
 [2324]: https://codeberg.org/dnkl/foot/issues/2324
+[2335]: https://codeberg.org/dnkl/foot/issues/2335
 
 
 ### Security
diff --git a/osc.c b/osc.c
index 82793fb5..95af5bff 100644
--- a/osc.c
+++ b/osc.c
@@ -761,13 +761,12 @@ kitty_notification(struct terminal *term, char *string)
 
                 const char *terminator = term->vt.osc.bel ? "\a" : "\033\\";
 
-                char reply[128];
+                char reply[512];
                 size_t n = xsnprintf(
                     reply, sizeof(reply),
                     "\033]99;i=%s:p=?;p=%s:a=%s:o=%s:u=%s:c=1:w=1:s=system,silent,error,warn,warning,info,question%s",
                     reply_id, p_caps, a_caps, when_caps, u_caps, terminator);
 
-                xassert(n < sizeof(reply));
                 term_to_slave(term, reply, n);
                 goto out;
             }