diff --git a/plugins/poll/assets/javascripts/poll_dialect.js b/plugins/poll/assets/javascripts/poll_dialect.js
index cc2ed60b912..40b0b6cf37e 100644
--- a/plugins/poll/assets/javascripts/poll_dialect.js
+++ b/plugins/poll/assets/javascripts/poll_dialect.js
@@ -178,6 +178,6 @@
   Discourse.Markdown.whiteListTag("a", "class", /^button (cast-votes|toggle-results)/);
 
   Discourse.Markdown.whiteListTag("li", "data-*");
-  Discourse.Markdown.whiteListTag("li", "style");
+  Discourse.Markdown.whiteListTag("li", "style", /^(color=#?\w+;)?(background=#?\w+;)?$/);
 
 })();