diff --git a/pkgs/development/libraries/libcec/platform.nix b/pkgs/development/libraries/libcec/platform.nix
index 11139df5e027..52f61d413544 100644
--- a/pkgs/development/libraries/libcec/platform.nix
+++ b/pkgs/development/libraries/libcec/platform.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch,
   cmake,
 }:
 
@@ -13,11 +14,28 @@ stdenv.mkDerivation rec {
     owner = "Pulse-Eight";
     repo = "platform";
     rev = "p8-platform-${version}";
-    sha256 = "sha256-zAI/AOLJAunv+cCQ6bOXrgkW+wl5frj3ktzx2cDeCCk=";
+    hash = "sha256-zAI/AOLJAunv+cCQ6bOXrgkW+wl5frj3ktzx2cDeCCk=";
   };
 
   nativeBuildInputs = [ cmake ];
 
+  patches = [
+    # required for cmake 4 support
+    (fetchpatch {
+      name = "libcec-platform-fix-cmake4-1.patch";
+      url = "https://github.com/Pulse-Eight/platform/commit/7350df98980b4e7036812b15812e3cb3c9353816.patch";
+      includes = [ "CMakeLists.txt" ];
+      hash = "sha256-YbxQxmXF2Iv67SjX/kMD9Df2nggBFX0fBFMyNdXXZtI=";
+    })
+    # required for cmake 4 support
+    (fetchpatch {
+      name = "libcec-platform-fix-cmake4-5.patch";
+      url = "https://github.com/Pulse-Eight/platform/commit/d7faed1c696b1a6a67f114a63a0f4c085f0f9195.patch";
+      includes = [ "CMakeLists.txt" ];
+      hash = "sha256-T+quL5wxc1w+KyNGxW443Ud+r6FVPej6jN6oXQ5pkRs=";
+    })
+  ];
+
   cmakeFlags = lib.optional stdenv.hostPlatform.isDarwin "-DCMAKE_CXX_FLAGS='-std=c++11'";
 
   meta = with lib; {