diff --git a/apps/language_server/lib/language_server/providers/execute_command.ex b/apps/language_server/lib/language_server/providers/execute_command.ex
index f87eb7832..fd490c4ba 100644
--- a/apps/language_server/lib/language_server/providers/execute_command.ex
+++ b/apps/language_server/lib/language_server/providers/execute_command.ex
@@ -10,7 +10,7 @@ defmodule ElixirLS.LanguageServer.Providers.ExecuteCommand do
     handler =
       case command do
         "spec:" <> _ -> ElixirLS.LanguageServer.Providers.ExecuteCommand.ApplySpec
-        "expandMacro" -> ElixirLS.LanguageServer.Providers.ExecuteCommand.ExpandMacro
+        "expandMacro:" <> _ -> ElixirLS.LanguageServer.Providers.ExecuteCommand.ExpandMacro
         _ -> nil
       end
 
diff --git a/apps/language_server/lib/language_server/server.ex b/apps/language_server/lib/language_server/server.ex
index bc4aa62fe..97bd5ac55 100644
--- a/apps/language_server/lib/language_server/server.ex
+++ b/apps/language_server/lib/language_server/server.ex
@@ -787,7 +787,7 @@ defmodule ElixirLS.LanguageServer.Server do
       "executeCommandProvider" => %{
         "commands" => [
           "spec:#{server_instance_id}",
-          "expandMacro"
+          "expandMacro:#{server_instance_id}"
         ]
       },
       "workspace" => %{