diff --git a/pkgs/development/python-modules/pyunpack/default.nix b/pkgs/development/python-modules/pyunpack/default.nix
index b6dff5a97d03..af4e258fb62b 100644
--- a/pkgs/development/python-modules/pyunpack/default.nix
+++ b/pkgs/development/python-modules/pyunpack/default.nix
@@ -5,6 +5,7 @@
 , easyprocess
 , entrypoint2
 , patool
+, cabextract
 }:
 
 buildPythonPackage rec {
@@ -31,7 +32,10 @@ buildPythonPackage rec {
     entrypoint2
   ];
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [
+    pytestCheckHook
+    cabextract
+  ];
 
   pytestFlagsArray = [ "-x" ];