diff --git a/src/backend/mock.rs b/src/backend/mock.rs
index 39d1f99..7a41a6e 100644
--- a/src/backend/mock.rs
+++ b/src/backend/mock.rs
@@ -173,7 +173,6 @@ impl AppData {
         for workspace_handle in new_workspaces {
             self.send_event(Event::WorkspaceCapture(
                 workspace_handle,
-                output.clone(),
                 create_solid_capture_image(0, 255, 0),
             ));
         }