diff --git a/pkgs/applications/audio/zynaddsubfx/default.nix b/pkgs/applications/audio/zynaddsubfx/default.nix
index 347fd7fcc107..da5abd1baccb 100644
--- a/pkgs/applications/audio/zynaddsubfx/default.nix
+++ b/pkgs/applications/audio/zynaddsubfx/default.nix
@@ -134,6 +134,7 @@ stdenv.mkDerivation rec {
   cmakeFlags = [
     "-DGuiModule=${guiModule}"
     "-DZYN_DATADIR=${placeholder "out"}/share/zynaddsubfx"
+    "-DCMAKE_POLICY_VERSION_MINIMUM=3.5"
   ]
   # OSS library is included in glibc.
   # Must explicitly disable if support is not wanted.