diff --git a/src/eval.c b/src/eval.c
index ba456f2..ea24a9c 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -12008,6 +12008,8 @@
 	rettv->v_type = VAR_LIST;
 	rettv->vval.v_list = (list_T *)get_reg_contents(regname,
 				      (arg2 ? GREG_EXPR_SRC : 0) | GREG_LIST);
+	if (rettv->vval.v_list != NULL)
+	    ++rettv->vval.v_list->lv_refcount;
     }
     else
     {
diff --git a/src/version.c b/src/version.c
index 2aaef3c..df18f5e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    513,
+/**/
     512,
 /**/
     511,