diff --git a/src/commands/CommandFunctors.h b/src/commands/CommandFunctors.h
index f7f60d5ce..0d326a977 100644
--- a/src/commands/CommandFunctors.h
+++ b/src/commands/CommandFunctors.h
@@ -42,7 +42,7 @@ struct CommandContext {
       AudacityProject &p
       , const wxEvent *e = nullptr
       , int ii = 0
-      , const CommandParameter &param = {}
+      , const CommandParameter &param = CommandParameter{}
    )
       : project{ p }
       , pEvt{ e }
diff --git a/src/commands/CommandManager.h b/src/commands/CommandManager.h
index d8111a342..a7d69f399 100644
--- a/src/commands/CommandManager.h
+++ b/src/commands/CommandManager.h
@@ -156,7 +156,7 @@ class AUDACITY_DLL_API CommandManager final : public XMLTagHandler
                 CommandFunctorPointer callback,
                 CommandFlag flags = NoFlagsSpecifed,
                 CommandMask mask   = NoFlagsSpecifed,
-                const CommandParameter &parameter = {});
+                const CommandParameter &parameter = CommandParameter{});
 
    void AddItem(const wxChar *name,
                 const wxChar *label_in,
@@ -166,7 +166,7 @@ class AUDACITY_DLL_API CommandManager final : public XMLTagHandler
                 CommandFlag flags = NoFlagsSpecifed,
                 CommandMask mask   = NoFlagsSpecifed,
                 int checkmark = -1,
-                const CommandParameter &parameter = {});
+                const CommandParameter &parameter = CommandParameter{});
 
    void AddSeparator();