diff --git a/articles/perl.md b/articles/perl.md
index 41eccd9..23bd37e 100644
--- a/articles/perl.md
+++ b/articles/perl.md
@@ -6,7 +6,7 @@ which can be considered as "inelegant" and leading to "write-only" programs, als
 marks used before identifiers used as a way of communicating the data type of the underlying identifiers; using
 the wrong sigil can lead to unexpected type conversion.
 
-Perl includes powerful [regex](regular_expressions.md) capabilities, although its regex engine is susceptible to catastrophic
+Perl includes powerful [regex](regular_expression.md) capabilities, although its regex engine is susceptible to catastrophic
 backtracking.
 
 It is shipped by default on most [Linux](linux.md) distributions, so it could be used as a replacement for [shell scripts](shell_script.md)