diff --git a/source/blender/blenloader/intern/versioning_common.cc b/source/blender/blenloader/intern/versioning_common.cc
index 08a370d5c3a..3c7375d0a57 100644
--- a/source/blender/blenloader/intern/versioning_common.cc
+++ b/source/blender/blenloader/intern/versioning_common.cc
@@ -284,20 +284,24 @@ void node_tree_relink_with_socket_id_map(bNodeTree &ntree,
   LISTBASE_FOREACH_MUTABLE (bNodeLink *, link, &ntree.links) {
     if (link->tonode == &old_node) {
       bNodeSocket *old_socket = link->tosock;
-      if (const std::string *new_identifier = map.lookup_ptr_as(old_socket->identifier)) {
-        bNodeSocket *new_socket = nodeFindSocket(&new_node, SOCK_IN, new_identifier->c_str());
-        link->tonode = &new_node;
-        link->tosock = new_socket;
-        old_socket->link = nullptr;
+      if (old_socket->is_available()) {
+        if (const std::string *new_identifier = map.lookup_ptr_as(old_socket->identifier)) {
+          bNodeSocket *new_socket = nodeFindSocket(&new_node, SOCK_IN, new_identifier->c_str());
+          link->tonode = &new_node;
+          link->tosock = new_socket;
+          old_socket->link = nullptr;
+        }
       }
     }
     if (link->fromnode == &old_node) {
       bNodeSocket *old_socket = link->fromsock;
-      if (const std::string *new_identifier = map.lookup_ptr_as(old_socket->identifier)) {
-        bNodeSocket *new_socket = nodeFindSocket(&new_node, SOCK_OUT, new_identifier->c_str());
-        link->fromnode = &new_node;
-        link->fromsock = new_socket;
-        old_socket->link = nullptr;
+      if (old_socket->is_available()) {
+        if (const std::string *new_identifier = map.lookup_ptr_as(old_socket->identifier)) {
+          bNodeSocket *new_socket = nodeFindSocket(&new_node, SOCK_OUT, new_identifier->c_str());
+          link->fromnode = &new_node;
+          link->fromsock = new_socket;
+          old_socket->link = nullptr;
+        }
       }
     }
   }