diff --git a/htmlcssguide.html b/htmlcssguide.html
index f23825d..b42fe4d 100644
--- a/htmlcssguide.html
+++ b/htmlcssguide.html
@@ -173,7 +173,7 @@ by including <!doctype html> at the beginning of the document
different doctype may be rendered in “limited-quirks mode”. These modes don’t
follow the widely-understood, widely-documented behavior for various core HTML
and CSS constructs, and are likely to cause subtle failures and
-incompatibilities especially when re-using code that expects no-quirks mode.