diff --git a/src/apps/cam/camera_session.cpp b/src/apps/cam/camera_session.cpp
index 1596a25a..17444a21 100644
--- a/src/apps/cam/camera_session.cpp
+++ b/src/apps/cam/camera_session.cpp
@@ -447,7 +447,8 @@ int CameraSession::queueRequest(Request *request)
 		return 0;
 
 	if (script_)
-		request->controls() = script_->frameControls(queueCount_);
+		request->controls().merge(script_->frameControls(queueCount_),
+					  ControlList::MergePolicy::OverwriteExisting);
 
 	queueCount_++;