diff --git a/pkgs/development/python-modules/parselmouth/default.nix b/pkgs/development/python-modules/parselmouth/default.nix
index 78417fe48c0b..183ee3100fd8 100644
--- a/pkgs/development/python-modules/parselmouth/default.nix
+++ b/pkgs/development/python-modules/parselmouth/default.nix
@@ -21,7 +21,7 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "YannickJadoul";
     repo = "Parselmouth";
-    rev = "v${version}";
+    tag = "v${version}";
     fetchSubmodules = true;
     hash = "sha256-/Hde/DpSbmHs8WF3PAk4esYuMgOX6SxMaYJrrHYr/ZU=";
   };
@@ -47,6 +47,11 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  pytestFlagsArray = [
+    "--run-praat-tests"
+    "-v"
+  ];
+
   pythonImportsCheck = [ "parselmouth" ];
 
   meta = {