diff --git a/cors/moon.pkg b/cors/moon.pkg
index 738b150..16167c0 100644
--- a/cors/moon.pkg
+++ b/cors/moon.pkg
@@ -5,3 +5,5 @@ import {
 // Suppress warning 20 from MoonBit's generated native test driver.
 
 warnings = "-20"
+
+supported_targets = "+js+native"
diff --git a/mocket.wasm.mbt b/mocket.wasm.mbt
deleted file mode 100644
index f5cdd9a..0000000
--- a/mocket.wasm.mbt
+++ /dev/null
@@ -1,43 +0,0 @@
-///|
-pub fn serve_ffi(_mocket : Mocket, port~ : Int) -> Unit {
-  ignore(port)
-  // Unimplemented
-  panic()
-}
-
-///|
-pub fn listen_ffi(_mocket : Mocket, address : String) -> Unit {
-  ignore(address)
-  // Unimplemented
-  panic()
-}
-
-///|
-pub fn ws_send(_id : String, _msg : String) -> Unit {
-  ()
-}
-
-///|
-pub fn ws_send_bytes(_id : String, _msg : Bytes) -> Unit {
-  ()
-}
-
-///|
-pub fn ws_pong(_id : String) -> Unit {
-  ()
-}
-
-///|
-pub fn ws_subscribe(_id : String, _channel : String) -> Unit {
-  ()
-}
-
-///|
-pub fn ws_unsubscribe(_id : String, _channel : String) -> Unit {
-  ()
-}
-
-///|
-pub fn ws_publish(_channel : String, _msg : String) -> Unit {
-  ()
-}
diff --git a/moon.pkg b/moon.pkg
index f910147..40caff5 100644
--- a/moon.pkg
+++ b/moon.pkg
@@ -22,6 +22,8 @@ import {
 
 warnings = "-15-29"
 
+supported_targets = "+js+native"
+
 options(
   expose: [
     "__ws_emit_js",
@@ -39,8 +41,7 @@ options(
     "async.mbt": [ "js", "native" ],
     "mocket.js.mbt": [ "js" ],
     "mocket.native.mbt": [ "native" ],
-    "mocket.wasm.mbt": [ "wasm", "wasm-gc" ],
-    "serve.mbt": [ "js", "wasm", "wasm-gc" ],
+    "serve.mbt": [ "js" ],
     "serve.native.mbt": [ "native" ],
   },
 )
diff --git a/static_file/moon.pkg b/static_file/moon.pkg
index f763feb..0823313 100644
--- a/static_file/moon.pkg
+++ b/static_file/moon.pkg
@@ -6,3 +6,5 @@ import {
 // Suppress warning 20 from MoonBit's generated native test driver.
 
 warnings = "-20"
+
+supported_targets = "+js+native"