diff --git a/pkgs/by-name/to/tome4/0001-web-missing-include.patch b/pkgs/by-name/to/tome4/0001-web-missing-include.patch
index e23aa77c1ca2..cda3c69fff71 100644
--- a/pkgs/by-name/to/tome4/0001-web-missing-include.patch
+++ b/pkgs/by-name/to/tome4/0001-web-missing-include.patch
@@ -1,7 +1,7 @@
-From e0c17a8665250b3e3e7f4938f7b256ff50b78fc8 Mon Sep 17 00:00:00 2001
+From fcf32218989df74e9562b0e49e0a879e3d0e7da9 Mon Sep 17 00:00:00 2001
 From: Tom van Dijk <18gatenmaker6@gmail.com>
 Date: Thu, 23 Oct 2025 15:01:01 +0200
-Subject: [PATCH 1/3] web missing include
+Subject: [PATCH 1/4] web missing include
 
 ---
  src/web.c | 1 +
@@ -20,5 +20,5 @@ index f12eebb..940aaf9 100644
  /*
   * Grab web browser methods -- availabe only here
 -- 
-2.51.0
+2.51.2
 
diff --git a/pkgs/by-name/to/tome4/0002-zlib-missing-include.patch b/pkgs/by-name/to/tome4/0002-zlib-missing-include.patch
index d6fb92441f2b..6499e32b63b4 100644
--- a/pkgs/by-name/to/tome4/0002-zlib-missing-include.patch
+++ b/pkgs/by-name/to/tome4/0002-zlib-missing-include.patch
@@ -1,7 +1,7 @@
-From a14890a8a7080c73cac10ff31365833b179c0464 Mon Sep 17 00:00:00 2001
+From b0d000d959a27f962f6e4bd55d601d22ff443f94 Mon Sep 17 00:00:00 2001
 From: Tom van Dijk <18gatenmaker6@gmail.com>
 Date: Thu, 23 Oct 2025 15:45:03 +0200
-Subject: [PATCH 2/3] zlib missing include
+Subject: [PATCH 2/4] zlib missing include
 
 ---
  src/zlib/gzguts.h | 1 +
@@ -20,5 +20,5 @@ index 990a4d2..7c89751 100644
  #  include <stdlib.h>
  #  include <limits.h>
 -- 
-2.51.0
+2.51.2
 
diff --git a/pkgs/by-name/to/tome4/0003-incompatible-pointer-types.patch b/pkgs/by-name/to/tome4/0003-incompatible-pointer-types.patch
index f2e1b36b34de..984f9a35c902 100644
--- a/pkgs/by-name/to/tome4/0003-incompatible-pointer-types.patch
+++ b/pkgs/by-name/to/tome4/0003-incompatible-pointer-types.patch
@@ -1,7 +1,7 @@
-From ed9f9819c3a0d6b8e92f66aafa6324eb4b310282 Mon Sep 17 00:00:00 2001
+From fd35d2505821155b12f165aafa64384599a600ab Mon Sep 17 00:00:00 2001
 From: Tom van Dijk <18gatenmaker6@gmail.com>
 Date: Thu, 23 Oct 2025 15:53:06 +0200
-Subject: [PATCH 3/3] incompatible pointer types
+Subject: [PATCH 3/4] incompatible pointer types
 
 ---
  src/display_sdl.c                  | 2 +-
@@ -67,5 +67,5 @@ index e2ec026..f905033 100644
  #define glVertexPointer(nb, t, v, p) \
  { \
 -- 
-2.51.0
+2.51.2
 
diff --git a/pkgs/by-name/to/tome4/0004-fix-build-with-C23.patch b/pkgs/by-name/to/tome4/0004-fix-build-with-C23.patch
new file mode 100644
index 000000000000..b98a79310863
--- /dev/null
+++ b/pkgs/by-name/to/tome4/0004-fix-build-with-C23.patch
@@ -0,0 +1,27 @@
+From 55f41ab4ff15cca5791c107d504780a09f065eb7 Mon Sep 17 00:00:00 2001
+From: Tom van Dijk <18gatenmaker6@gmail.com>
+Date: Mon, 12 Jan 2026 21:51:31 +0100
+Subject: [PATCH 4/4] fix build with C23
+
+---
+ src/types.h | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+diff --git a/src/types.h b/src/types.h
+index b5b46a0..eea255b 100644
+--- a/src/types.h
++++ b/src/types.h
+@@ -22,9 +22,7 @@
+ #define TYPES_H
+ 
+ #ifndef __cplusplus
+-#ifndef bool
+-typedef char bool;
+-#endif
++#include <stdbool.h>
+ #endif
+ 
+ #define FALSE 0
+-- 
+2.51.2
+
diff --git a/pkgs/by-name/to/tome4/package.nix b/pkgs/by-name/to/tome4/package.nix
index d74852014c8e..45f99736fe84 100644
--- a/pkgs/by-name/to/tome4/package.nix
+++ b/pkgs/by-name/to/tome4/package.nix
@@ -56,6 +56,8 @@ stdenv.mkDerivation (finalAttrs: {
     # unistd required for read and close
     ./0002-zlib-missing-include.patch
     ./0003-incompatible-pointer-types.patch
+    # C23 requires stdbool for an actual proper boolean type instead of `char'
+    ./0004-fix-build-with-C23.patch
   ];
 
   nativeBuildInputs = [