diff --git a/manual/regexp_quick_reference.rst b/manual/regexp_quick_reference.rst
index 17a0bbdbae..7fc9ab6996 100644
--- a/manual/regexp_quick_reference.rst
+++ b/manual/regexp_quick_reference.rst
@@ -35,7 +35,7 @@ Examples:
 | ``[^0-9]``            | Any character except a digit. The caret (^) placed at the beginning of the class excludes the characters of the class (complemented class)                                                             |
 |                       |                                                                                                                                                                                                        |
 +-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
-| ``[[a-z]--[aeiouy]]`` | The lowercase consonants. A class can be included in a class. The characters -- exclude what follows them                                                                                              |
+| ``[[a-z]--[aeiouy]]`` | The lowercase consonants. A class can be included in a class. The characters ``--`` exclude what follows them                                                                                          |
 |                       |                                                                                                                                                                                                        |
 +-----------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 | ``[\w--[\d_]]``       | All letters (including foreign accented characters). Abbreviated classes can be used inside a class                                                                                                    |