diff --git a/html5lib/filters/sanitizer.py b/html5lib/filters/sanitizer.py
index e852f53b..a2c28409 100644
--- a/html5lib/filters/sanitizer.py
+++ b/html5lib/filters/sanitizer.py
@@ -577,6 +577,8 @@
     'height',
     'letter-spacing',
     'line-height',
+    'max-width',
+    'min-width',
     'overflow',
     'pause',
     'pause-after',