1 files changed, 8 insertions, 0 deletions
diff --git a/source/blender/nodes/intern/node_socket.cc b/source/blender/nodes/intern/node_socket.cc
index 783a7a9b3d8..052896d2f48 100644
--- a/source/blender/nodes/intern/node_socket.cc
+++ b/source/blender/nodes/intern/node_socket.cc
@@ -37,6 +37,7 @@
 #include "BKE_node.h"
 
 #include "DNA_collection_types.h"
+#include "DNA_material_types.h"
 
 #include "RNA_access.h"
 #include "RNA_types.h"
@@ -396,6 +397,13 @@ void node_socket_copy_default_value(bNodeSocket *to, const bNodeSocket *from)
       id_us_plus(&toval->value->id);
       break;
     }
+    case SOCK_MATERIAL: {
+      bNodeSocketValueMaterial *toval = (bNodeSocketValueMaterial *)to->default_value;
+      bNodeSocketValueMaterial *fromval = (bNodeSocketValueMaterial *)from->default_value;
+      *toval = *fromval;
+      id_us_plus(&toval->value->id);
+      break;
+    }
   }
 
   to->flag |= (from->flag & SOCK_HIDE_VALUE);