diff --git a/test/test-platform-output.c b/test/test-platform-output.c
index 1e177296..fe7b3060 100644
--- a/test/test-platform-output.c
+++ b/test/test-platform-output.c
@@ -44,6 +44,7 @@ TEST_IMPL(platform_output) {
 
   err = uv_uptime(&uptime);
   ASSERT(UV_OK == err.code);
+  ASSERT(uptime > 0);
   fprintf(stderr, "uv_uptime: %f\n", uptime);
 
   err = uv_cpu_info(&cpus, &count);