diff --git a/internal/pkg/node/mergo.go b/internal/pkg/node/mergo.go
index cd96b537..3a0b2c33 100644
--- a/internal/pkg/node/mergo.go
+++ b/internal/pkg/node/mergo.go
@@ -141,7 +141,7 @@ func (config *NodesYaml) MergeNode(id string) (node Node, fields fieldMap, err e
 		}
 	}
 
-	if err = mergo.Merge(&node, originalNode, mergo.WithAppendSlice, mergo.WithOverride); err != nil {
+	if err = mergo.Merge(&node, originalNode, mergo.WithAppendSlice, mergo.WithOverride, mergo.WithTransformers(InterfaceTransformer{})); err != nil {
 		return node, fields, err
 	}
 	for _, fieldName := range listFields(originalNode) {