diff --git a/pkgs/development/python-modules/opuslib/default.nix b/pkgs/development/python-modules/opuslib/default.nix
index 4ea7c8e7ba8f..d023c570bcbb 100644
--- a/pkgs/development/python-modules/opuslib/default.nix
+++ b/pkgs/development/python-modules/opuslib/default.nix
@@ -28,6 +28,12 @@ buildPythonPackage rec {
       url = "https://github.com/orion-labs/opuslib/commit/8aee916e4da4b3183d49cff5a986dc2408076d8d.patch";
       hash = "sha256-oa1HCFHNS3ejzSf0jxv9NueUKOZgdCtpv+xTrjYW5os=";
     })
+    # https://github.com/orion-labs/opuslib/pull/25
+    (fetchpatch {
+      name = "fix-tests-when-using-libopus-1.4.patch";
+      url = "https://github.com/orion-labs/opuslib/commit/87a214fc98c1dcae38035e99fe8e279a160c4a52.patch";
+      hash = "sha256-UoOafyTFvWLY7ErtBhkXTZSgbMZFrg5DGxjbhqEI7wo=";
+    })
     (substituteAll {
       src = ./opuslib-paths.patch;
       opusLibPath = "${libopus}/lib/libopus${stdenv.hostPlatform.extensions.sharedLibrary}";