diff --git a/source/blender/blenkernel/intern/node.c b/source/blender/blenkernel/intern/node.c
index 87d3cd7209c..4f3bf4d1c0c 100644
--- a/source/blender/blenkernel/intern/node.c
+++ b/source/blender/blenkernel/intern/node.c
@@ -475,7 +475,7 @@ static bNodeSocket *make_socket(bNodeTree *ntree, bNode *UNUSED(node), int in_ou
 		BLI_strncpy(auto_identifier, name, sizeof(auto_identifier));
 	}
 	/* make the identifier unique */
-	BLI_uniquename_cb(unique_identifier_check, lb, NULL, '.', auto_identifier, sizeof(auto_identifier));
+	BLI_uniquename_cb(unique_identifier_check, lb, "socket", '.', auto_identifier, sizeof(auto_identifier));
 	
 	sock = MEM_callocN(sizeof(bNodeSocket), "sock");
 	sock->in_out = in_out;
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 812e8df389a..7f1f00431d3 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -7770,20 +7770,20 @@ static void do_versions_nodetree_customnodes(bNodeTree *ntree, int UNUSED(is_gro
 		for (node=ntree->nodes.first; node; node=node->next) {
 			for (sock = node->inputs.first; sock; sock = sock->next) {
 				BLI_strncpy(sock->identifier, sock->name, sizeof(sock->identifier));
-				BLI_uniquename(&node->inputs, sock, sock->identifier, '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
+				BLI_uniquename(&node->inputs, sock, "socket", '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
 			}
 			for (sock = node->outputs.first; sock; sock = sock->next) {
 				BLI_strncpy(sock->identifier, sock->name, sizeof(sock->identifier));
-				BLI_uniquename(&node->outputs, sock, sock->identifier, '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
+				BLI_uniquename(&node->outputs, sock, "socket", '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
 			}
 		}
 		for (sock = ntree->inputs.first; sock; sock = sock->next) {
 			BLI_strncpy(sock->identifier, sock->name, sizeof(sock->identifier));
-			BLI_uniquename(&ntree->inputs, sock, sock->identifier, '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
+			BLI_uniquename(&ntree->inputs, sock, "socket", '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
 		}
 		for (sock = ntree->outputs.first; sock; sock = sock->next) {
 			BLI_strncpy(sock->identifier, sock->name, sizeof(sock->identifier));
-			BLI_uniquename(&ntree->outputs, sock, sock->identifier, '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
+			BLI_uniquename(&ntree->outputs, sock, "socket", '.', offsetof(bNodeSocket, identifier), sizeof(sock->identifier));
 		}
 	}
 }