diff --git a/pkgs/development/python-modules/argon2_cffi/default.nix b/pkgs/development/python-modules/argon2_cffi/default.nix
index 839429bc948b..4ecf5fbc5f0d 100644
--- a/pkgs/development/python-modules/argon2_cffi/default.nix
+++ b/pkgs/development/python-modules/argon2_cffi/default.nix
@@ -23,7 +23,8 @@ buildPythonPackage rec {
     sha256 = "d384164d944190a7dd7ef22c6aa3ff197da12962bd04b17f64d4e93d934dba5b";
   };
 
-  propagatedBuildInputs = [ cffi six ] ++ lib.optional (!isPy3k) enum34;
+  propagatedBuildInputs = [ cffi six argon2-cffi-bindings ]
+    ++ lib.optional (!isPy3k) enum34;
 
   propagatedNativeBuildInputs = [
     argon2-cffi-bindings