diff --git a/setup.py b/setup.py
index c076f1ba29d07..8d743a4e697d9 100644
--- a/setup.py
+++ b/setup.py
@@ -136,6 +136,10 @@ def run(self):
             f'-DTI_VERSION_PATCH={TI_VERSION_PATCH}',
         ]
 
+        emscriptened = os.getenv('TI_EMSCRIPTENED', '0') in ('1', 'ON')
+        if emscriptened:
+            cmake_args += ['-DTI_EMSCRIPTENED=ON']
+
         if shutil.which('ninja'):
             cmake_args += ['-GNinja']