diff --git a/packages/rtl/webassembly.pas b/packages/rtl/webassembly.pas
index 311c6ab..0266aa1 100644
--- a/packages/rtl/webassembly.pas
+++ b/packages/rtl/webassembly.pas
@@ -29,7 +29,7 @@ Type
 
   { TJSModulesArray }
 
-  TJSModulesExports = Class external name 'anon' (TJSObject)
+  TJSModulesExports = Class external name 'Object' (TJSObject)
   private
     FMemory : TJSWebAssemblyMemory; external name 'memory';
     function GetFun(aName : String): TJSFunction; external name '[]';
diff --git a/packages/wasi/wasienv.pas b/packages/wasi/wasienv.pas
index 9d8e2e1..643a3fd 100644
--- a/packages/wasi/wasienv.pas
+++ b/packages/wasi/wasienv.pas
@@ -299,7 +299,8 @@ type
 
   TWASIWriteEvent = Reference to Procedure(Sender : TObject; Const aOutput : String);
 
-  TWASIExports = Class External name 'Object' (TJSObject)
+  // Standard FPC exports.
+  TWASIExports = Class External name 'Object' (TJSModulesExports)
   Public
      Procedure start; external name '_start';
   end;