diff --git a/webdriver-spec.html b/webdriver-spec.html
index d467245b4..1e7a805a8 100644
--- a/webdriver-spec.html
+++ b/webdriver-spec.html
@@ -178,7 +178,7 @@ <h3>Terminology</h3>
  in the Document Object Model, unless stated otherwise.
 
 <p>In equations, all numbers are integers,
- addition is represtend by “+”,
+ addition is represented by “+”,
  subtraction is represented by “−”,
  and bitwise OR by “|”.
  The characters “(” and “)” are used to provide logical grouping in these contexts.