diff --git a/pkgs/development/python-modules/mitmproxy/default.nix b/pkgs/development/python-modules/mitmproxy/default.nix
index 79ebd184290e..b3cf3b85849b 100644
--- a/pkgs/development/python-modules/mitmproxy/default.nix
+++ b/pkgs/development/python-modules/mitmproxy/default.nix
@@ -55,6 +55,7 @@ buildPythonPackage rec {
     "kaitaistruct"
     "passlib"
     "pyopenssl"
+    "pyperclip"
     "tornado"
     "typing-extensions"
     "urwid"