From b88cd206b0c9a3ddda272743a29d61401310e003 Mon Sep 17 00:00:00 2001
From: Emile Clark-Boman <emile@agribit.com.au>
Date: Thu, 18 Dec 2025 12:48:29 +1000
Subject: [PATCH] fix isTerminal doesn't check isAttrs

---
 nib/types/terminal.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nib/types/terminal.nix b/nib/types/terminal.nix
index a3b37a9..9e996ea 100644
--- a/nib/types/terminal.nix
+++ b/nib/types/terminal.nix
@@ -8,7 +8,8 @@
 
   # Pattern Matching
   isTerminal = T:
-    (builtins.attrNames T == ["_nbtype_" "_value_"])
+    builtins.isAttrs T
+    && builtins.attrNames T == ["_nbtype_" "_value_"]
     && T._nbtype_ == "nib::Terminal";
 
   # Unwrap (Monadic Return Operation)