diff --git a/pkgs/applications/emulators/flycast/default.nix b/pkgs/applications/emulators/flycast/default.nix
index ff1773a83726..2ef186f3013c 100644
--- a/pkgs/applications/emulators/flycast/default.nix
+++ b/pkgs/applications/emulators/flycast/default.nix
@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchFromGitHub
+, fetchpatch2
 , cmake
 , pkg-config
 , makeWrapper
@@ -27,6 +28,14 @@ stdenv.mkDerivation rec {
     fetchSubmodules = true;
   };
 
+  patches = [
+    # miniupnp: add support for api version 18
+    (fetchpatch2 {
+      url = "https://github.com/flyinghead/flycast/commit/71982eda7a038e24942921e558845103b6c12326.patch?full_index=1";
+      hash = "sha256-5fFCgX7MfCqW7zxXJuHt9js+VTZZKEQHRYuWh7MTKzI=";
+    })
+  ];
+
   nativeBuildInputs = [
     cmake
     pkg-config