diff --git a/test/test_projects/c.py b/test/test_projects/c.py
index 9fcebb5cb..3186b1bb0 100644
--- a/test/test_projects/c.py
+++ b/test/test_projects/c.py
@@ -42,17 +42,17 @@
 """
 
 SETUP_PY_TEMPLATE = r"""
+import platform
 import sys
-import os
 
 from setuptools import setup, Extension
 
 {{ setup_py_add }}
 
 libraries = []
-# Emscripten used to have a bug if you pass -lc, but it is fixed as of 3.1.32
-# if sys.platform.startswith('linux') and os.environ.get("_PYTHON_HOST_PLATFORM") != "emscripten_3_1_27_wasm32":
-#     libraries.extend(['m', 'c'])
+# Emscripten fails if you pass -lc...
+if sys.platform.startswith('linux') and platform.machine() != "wasm32":
+    libraries.extend(['m', 'c'])
 
 
 setup(