diff --git a/mock_crypto_data_handler.go b/mock_crypto_data_handler_test.go
similarity index 100%
rename from mock_crypto_data_handler.go
rename to mock_crypto_data_handler_test.go
diff --git a/mockgen.go b/mockgen.go
index 73add955..eb0d2e48 100644
--- a/mockgen.go
+++ b/mockgen.go
@@ -6,7 +6,7 @@ package quic
 //go:generate sh -c "./mockgen_private.sh quic mock_send_stream_internal_test.go github.com/lucas-clemente/quic-go sendStreamI"
 //go:generate sh -c "./mockgen_private.sh quic mock_stream_sender_test.go github.com/lucas-clemente/quic-go streamSender"
 //go:generate sh -c "./mockgen_private.sh quic mock_stream_getter_test.go github.com/lucas-clemente/quic-go streamGetter"
-//go:generate sh -c "./mockgen_private.sh quic mock_crypto_data_handler.go github.com/lucas-clemente/quic-go cryptoDataHandler"
+//go:generate sh -c "./mockgen_private.sh quic mock_crypto_data_handler_test.go github.com/lucas-clemente/quic-go cryptoDataHandler"
 //go:generate sh -c "./mockgen_private.sh quic mock_frame_source_test.go github.com/lucas-clemente/quic-go frameSource"
 //go:generate sh -c "./mockgen_private.sh quic mock_ack_frame_source_test.go github.com/lucas-clemente/quic-go ackFrameSource"
 //go:generate sh -c "./mockgen_private.sh quic mock_stream_manager_test.go github.com/lucas-clemente/quic-go streamManager"