From 2f8a0510b873d82c30218c4455747380c4f7ee4e Mon Sep 17 00:00:00 2001
From: Alibek Omarov <a1ba.omarov@gmail.com>
Date: Mon, 16 Feb 2026 23:59:23 +0500
Subject: [PATCH] engine: client: return NULL from LookupBinding on unknown
 bindings, like GoldSource

---
 engine/client/keys.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/engine/client/keys.c b/engine/client/keys.c
index 6e6ba204..40072822 100644
--- a/engine/client/keys.c
+++ b/engine/client/keys.c
@@ -313,7 +313,12 @@ Key_LookupBinding
 */
 const char *Key_LookupBinding( const char *pBinding )
 {
-	return Key_KeynumToString( Key_GetKey( pBinding ));
+	int key = Key_GetKey( pBinding );
+
+	if( key == -1 )
+		return NULL;
+
+	return Key_KeynumToString( key );
 }
 
 /*