1 files changed, 4 insertions, 1 deletions
diff --git a/source/blender/functions/intern/multi_function_network_evaluation.cc b/source/blender/functions/intern/multi_function_network_evaluation.cc
index 98500a350ae..daa0a42963a 100644
--- a/source/blender/functions/intern/multi_function_network_evaluation.cc
+++ b/source/blender/functions/intern/multi_function_network_evaluation.cc
@@ -115,7 +115,7 @@ MFNetworkEvaluator::MFNetworkEvaluator(Vector<const MFOutputSocket *> inputs,
     : inputs_(std::move(inputs)), outputs_(std::move(outputs))
 {
   BLI_assert(outputs_.size() > 0);
-  MFSignatureBuilder signature = this->get_builder("Function Tree");
+  MFSignatureBuilder signature{"Function Tree"};
 
   for (const MFOutputSocket *socket : inputs_) {
     BLI_assert(socket->node().is_dummy());
@@ -144,6 +144,9 @@ MFNetworkEvaluator::MFNetworkEvaluator(Vector<const MFOutputSocket *> inputs,
         break;
     }
   }
+
+  signature_ = signature.build();
+  this->set_signature(&signature_);
 }
 
 void MFNetworkEvaluator::call(IndexMask mask, MFParams params, MFContext context) const