diff --git a/pkgs/by-name/cl/clblast/package.nix b/pkgs/by-name/cl/clblast/package.nix
index 8f93b2d236a5..c1f9cd6e7336 100644
--- a/pkgs/by-name/cl/clblast/package.nix
+++ b/pkgs/by-name/cl/clblast/package.nix
@@ -1,6 +1,7 @@
 {
   lib,
   stdenv,
+  fetchpatch,
   fetchFromGitHub,
   cmake,
   ninja,
@@ -19,6 +20,15 @@ stdenv.mkDerivation rec {
     hash = "sha256-fzenYFCAQ0B2NQgh5OaErv/yNEzjznB6ogRapqfL6P4=";
   };
 
+  patches = [
+    (fetchpatch {
+      name = "clblast-fix-cmake4.patch";
+      url = "https://github.com/CNugteren/CLBlast/commit/dd714f1b72aa8c341e5a27aa9e968b4ecdaf1abb.patch";
+      includes = [ "CMakeLists.txt" ];
+      hash = "sha256-AVFzEdj1CaVSJxOcn5PoqFb+b8k5YgSMD3VhvHeBd7o=";
+    })
+  ];
+
   nativeBuildInputs = [
     cmake
     ninja