diff --git a/pkgs/by-name/do/dolphin-emu/package.nix b/pkgs/by-name/do/dolphin-emu/package.nix
index 6a95b132b991..afa43c77c80b 100644
--- a/pkgs/by-name/do/dolphin-emu/package.nix
+++ b/pkgs/by-name/do/dolphin-emu/package.nix
@@ -132,6 +132,8 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeFeature "DISTRIBUTOR" "NixOS")
     (lib.cmakeFeature "DOLPHIN_WC_DESCRIBE" finalAttrs.version)
     (lib.cmakeFeature "DOLPHIN_WC_BRANCH" "master")
+    # Fix building v2509, should be removed in the future
+    "-DCMAKE_POLICY_VERSION_MINIMUM=3.5"
   ]
   ++ lib.optionals stdenv.hostPlatform.isDarwin [
     (lib.cmakeBool "OSX_USE_DEFAULT_SEARCH_PATH" true)