diff --git a/src/eval.c b/src/eval.c
index a4f5531..4c530a0 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -21939,6 +21939,7 @@
 #endif
 	case VAR_STRING:
 	case VAR_FUNC:
+	case VAR_SPECIAL:
 	    copy_tv(from, to);
 	    break;
 	case VAR_LIST:
diff --git a/src/testdir/test_viml.vim b/src/testdir/test_viml.vim
index f7b3414..6c755bb 100644
--- a/src/testdir/test_viml.vim
+++ b/src/testdir/test_viml.vim
@@ -1001,6 +1001,16 @@
     call assert_equal(v:none, eval(string(v:none)))
     call assert_equal(v:null, eval(string(v:null)))
 
+    call assert_equal(v:false, copy(v:false))
+    call assert_equal(v:true, copy(v:true))
+    call assert_equal(v:none, copy(v:none))
+    call assert_equal(v:null, copy(v:null))
+
+    call assert_equal([v:false], deepcopy([v:false]))
+    call assert_equal([v:true], deepcopy([v:true]))
+    call assert_equal([v:none], deepcopy([v:none]))
+    call assert_equal([v:null], deepcopy([v:null]))
+
     call assert_true(empty(v:false))
     call assert_false(empty(v:true))
     call assert_true(empty(v:null))
diff --git a/src/version.c b/src/version.c
index 1130a20..6eb8b24 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1228,
+/**/
     1227,
 /**/
     1226,