diff --git a/Misc/Warm-Ups/regex.tex b/Misc/Warm-Ups/regex.tex
index 221c1a6..91de002 100644
--- a/Misc/Warm-Ups/regex.tex
+++ b/Misc/Warm-Ups/regex.tex
@@ -54,7 +54,7 @@
 	\vspace{2mm}
 
 
-	\htexttt{?} means \say{match one or none of the preceeding token} \\
+	\htexttt{?} means \say{match one or none of the preceding token} \\
 	The pattern \htexttt{linea?r} will match only \texttt{linear} and \texttt{liner}. \\
 	\vspace{2mm}