diff --git a/src/dlangui/core/stdaction.d b/src/dlangui/core/stdaction.d
index 0cc005a7..3163890c 100644
--- a/src/dlangui/core/stdaction.d
+++ b/src/dlangui/core/stdaction.d
@@ -32,15 +32,27 @@ enum StandardAction : int {
     Save,
 }
 
-__gshared const Action ACTION_OK = new Action(StandardAction.Ok, "ACTION_OK"c);
-__gshared const Action ACTION_CANCEL = new Action(StandardAction.Cancel, "ACTION_CANCEL"c);
-__gshared const Action ACTION_YES = new Action(StandardAction.Yes, "ACTION_YES"c);
-__gshared const Action ACTION_NO = new Action(StandardAction.No, "ACTION_NO"c);
-__gshared const Action ACTION_CLOSE = new Action(StandardAction.Close, "ACTION_CLOSE"c);
-__gshared const Action ACTION_ABORT = new Action(StandardAction.Abort, "ACTION_ABORT"c);
-__gshared const Action ACTION_RETRY = new Action(StandardAction.Retry, "ACTION_RETRY"c);
-__gshared const Action ACTION_IGNORE = new Action(StandardAction.Ignore, "ACTION_IGNORE"c);
-__gshared const Action ACTION_OPEN = new Action(StandardAction.Open, "ACTION_OPEN"c);
-__gshared const Action ACTION_SAVE = new Action(StandardAction.Save, "ACTION_SAVE"c);
-
+immutable Action ACTION_OK;
+immutable Action ACTION_CANCEL;
+immutable Action ACTION_YES;
+immutable Action ACTION_NO;
+immutable Action ACTION_CLOSE;
+immutable Action ACTION_ABORT;
+immutable Action ACTION_RETRY;
+immutable Action ACTION_IGNORE;
+immutable Action ACTION_OPEN;
+immutable Action ACTION_SAVE;
 
+static this()
+{
+  ACTION_OK = cast(immutable(Action)) new Action(StandardAction.Ok, "ACTION_OK"c);
+  ACTION_CANCEL = cast(immutable(Action)) new Action(StandardAction.Cancel, "ACTION_CANCEL"c);
+  ACTION_YES = cast(immutable(Action)) new Action(StandardAction.Yes, "ACTION_YES"c);
+  ACTION_NO = cast(immutable(Action)) new Action(StandardAction.No, "ACTION_NO"c);
+  ACTION_CLOSE = cast(immutable(Action)) new Action(StandardAction.Close, "ACTION_CLOSE"c);
+  ACTION_ABORT = cast(immutable(Action)) new Action(StandardAction.Abort, "ACTION_ABORT"c);
+  ACTION_RETRY = cast(immutable(Action)) new Action(StandardAction.Retry, "ACTION_RETRY"c);
+  ACTION_IGNORE = cast(immutable(Action)) new Action(StandardAction.Ignore, "ACTION_IGNORE"c);
+  ACTION_OPEN = cast(immutable(Action)) new Action(StandardAction.Open, "ACTION_OPEN"c);
+  ACTION_SAVE = cast(immutable(Action)) new Action(StandardAction.Save, "ACTION_SAVE"c);
+}