diff --git a/src/libcamera/ipa_manager.cpp b/src/libcamera/ipa_manager.cpp
index 2d0ea242..26458153 100644
--- a/src/libcamera/ipa_manager.cpp
+++ b/src/libcamera/ipa_manager.cpp
@@ -291,7 +291,8 @@ std::unique_ptr<IPAProxy> IPAManager::createIPA(PipelineHandler *pipe,
 		return nullptr;
 	}
 
-	std::unique_ptr<IPAProxy> proxy = pf->create(m);
+	std::unique_ptr<IPAProxy> proxy =
+		pf->create(m, !self_->isSignatureValid(m));
 	if (!proxy->isValid()) {
 		LOG(IPAManager, Error) << "Failed to load proxy";
 		return nullptr;