diff --git a/src/about_regular_expressions.rb b/src/about_regular_expressions.rb
index 5c5f8fa..01e39f2 100644
--- a/src/about_regular_expressions.rb
+++ b/src/about_regular_expressions.rb
@@ -141,7 +141,7 @@ class AboutRegularExpressions < EdgeCase::Koan
 
   # THINK ABOUT IT:
   #
-  # Explain the difference between a character class ([…]) and alternation (|).
+  # Explain the difference between a character class ([...]) and alternation (|).
 
   # ------------------------------------------------------------------