diff --git a/src/apps.json b/src/apps.json
index 36be47c2e..b555243a3 100755
--- a/src/apps.json
+++ b/src/apps.json
@@ -5440,7 +5440,7 @@
 			],
 			"env": "^Twipsy$\\;confidence:50",
 			"html": [
-				"<style[^>]*>.*Bootstrap v.* Copyright .* Twitter, Inc\.\* Licensed under.*<\/style>",
+				"<style[^>]*>.*Bootstrap v.* Copyright .* Twitter, Inc\\.\\* Licensed under.*<\/style>",
 				"<link.+?href=\"[^\"]+bootstrap(?:\\.min)?\\.css",
 				"<div [^>]*class=\"[^\"]*col-(?:xs|sm|md|lg)-\\d{1,2}"
 			],