diff --git a/pkgs/by-name/dx/dxvk_1/gcc14-compat.patch b/pkgs/by-name/dx/dxvk_1/gcc14-compat.patch
new file mode 100644
index 000000000000..917f437fdcc3
--- /dev/null
+++ b/pkgs/by-name/dx/dxvk_1/gcc14-compat.patch
@@ -0,0 +1,14 @@
+diff --git a/src/d3d10/d3d10_interfaces.h b/src/d3d10/d3d10_interfaces.h
+index aa028ab575..99f1dc4567 100644
+--- a/src/d3d10/d3d10_interfaces.h
++++ b/src/d3d10/d3d10_interfaces.h
+@@ -1,9 +1,3 @@
+ #pragma once
+ 
+ #include "d3d10_include.h"
+-
+-#ifdef _MSC_VER
+-struct __declspec(uuid("0803425a-57f5-4dd6-9465-a87570834a08")) ID3D10StateBlock;
+-#else
+-__CRT_UUID_DECL(ID3D10StateBlock, 0x0803425a,0x57f5,0x4dd6,0x94,0x65,0xa8,0x75,0x70,0x83,0x4a,0x08);
+-#endif
diff --git a/pkgs/by-name/dx/dxvk_1/package.nix b/pkgs/by-name/dx/dxvk_1/package.nix
index 6d24af612e3c..ace6746f3f2a 100644
--- a/pkgs/by-name/dx/dxvk_1/package.nix
+++ b/pkgs/by-name/dx/dxvk_1/package.nix
@@ -29,6 +29,8 @@ stdenv.mkDerivation (finalAttrs: {
         url = "https://github.com/doitsujin/dxvk/commit/1a5afc77b1859e6c7e31b55e11ece899e3b5295a.patch";
         hash = "sha256-tTAsQOMAazgH/6laLNTuG2lki257VUR9EBivnD4vCuY=";
       })
+      # Fixes errors building with GCC 14.
+      ./gcc14-compat.patch
     ]
     ++ lib.optionals enableMoltenVKCompat [
       # Patch DXVK to work with MoltenVK even though it doesn’t support some required features.