diff --git a/system/include/emscripten/em_js.h b/system/include/emscripten/em_js.h
index 49f04a5f80866..0b565e0407c7d 100644
--- a/system/include/emscripten/em_js.h
+++ b/system/include/emscripten/em_js.h
@@ -61,7 +61,8 @@
 #define _EM_JS(ret, c_name, js_name, params, code)                             \
   _EM_BEGIN_CDECL                                                              \
   ret c_name params EM_IMPORT(js_name);                                        \
-  __attribute__((used)) static void* __em_js_ref_##c_name = (void*)&c_name;    \
+  __attribute__((visibility("hidden")))                                        \
+  void* __em_js_ref_##c_name = (void*)&c_name;                                 \
   EMSCRIPTEN_KEEPALIVE                                                         \
   __attribute__((section("em_js"), aligned(1))) char __em_js__##js_name[] =    \
     #params "<::>" code;                                                       \