diff --git a/test/test-spawn.c b/test/test-spawn.c
index 9418e191..48ab239b 100644
--- a/test/test-spawn.c
+++ b/test/test-spawn.c
@@ -402,11 +402,7 @@ TEST_IMPL(spawn_preserve_env) {
   options.stdio[1].data.stream = (uv_stream_t*) &out;
   options.stdio_count = 2;
 
-#ifdef _WIN32
   r = putenv("ENV_TEST=testval");
-#else
-  r = setenv("ENV_TEST", "testval", 1);
-#endif
   ASSERT(r == 0);
 
   /* Explicitly set options.env to NULL to test for env clobbering. */