diff --git a/man/man5/monitorix.conf.5 b/man/man5/monitorix.conf.5
index 437ce7e..c06d4e1 100644
--- a/man/man5/monitorix.conf.5
+++ b/man/man5/monitorix.conf.5
@@ -3176,7 +3176,7 @@ You must use the same name of service that you defined in \fBlist\fP followed by
 .P
 The third value is the first regular expression that Monitorix will use to match lines. It's normally used as the date that appears in the log file.
 .P
-The forth and last value is a group of regular expressions separated by a plus sign. You can prefix a regular expresion with \fIi:\fP in order to note that it must be insensitive case.
+The forth and last value is a group of regular expressions separated by a plus sign. You can prefix a regular expression with \fIi:\fP in order to note that it must be insensitive case.
 .P
 You can create multiple definitions of the same service with different values, so you are able to combine similar services into one single metric.
 .P