diff --git a/pkgs/tools/misc/vdirsyncer/default.nix b/pkgs/tools/misc/vdirsyncer/default.nix
index 731a194cc6a2..17798057ec3d 100644
--- a/pkgs/tools/misc/vdirsyncer/default.nix
+++ b/pkgs/tools/misc/vdirsyncer/default.nix
@@ -18,6 +18,7 @@ pythonPackages.buildPythonApplication rec {
     click click-log click-threading
     requests_toolbelt
     requests
+    requests_oauthlib # required for google oauth sync
     atomicwrites
   ];