diff --git a/pkgs/development/python-modules/cirq-google/default.nix b/pkgs/development/python-modules/cirq-google/default.nix
index ebd420244e4b..eeba8feebe7e 100644
--- a/pkgs/development/python-modules/cirq-google/default.nix
+++ b/pkgs/development/python-modules/cirq-google/default.nix
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     cirq-core
     google-api-core
     protobuf
-  ];
+  ] ++ google-api-core.optional-dependencies.grpc;
 
   checkInputs = [
     freezegun