diff --git a/mkdocs/tests/integration.py b/mkdocs/tests/integration.py
index 7b13d30e..d09119db 100644
--- a/mkdocs/tests/integration.py
+++ b/mkdocs/tests/integration.py
@@ -46,7 +46,7 @@ def main(output=None):
     log.addHandler(stream)
     log.setLevel(logging.DEBUG)
 
-    base_cmd = ['mkdocs', 'build', '-v', '--site-dir', ]
+    base_cmd = ['mkdocs', 'build', '-s', '-v', '--site-dir', ]
 
     log.debug("Building installed themes.")
     for theme in sorted(MKDOCS_THEMES):