diff --git a/man/man5/monitorix.conf.5 b/man/man5/monitorix.conf.5
index f9ef927..4ac07d1 100644
--- a/man/man5/monitorix.conf.5
+++ b/man/man5/monitorix.conf.5
@@ -864,7 +864,7 @@ Default value: \fI/path/to/script.sh\fP
 .P
 .BI use_nan_for_missing_data
 .RS
-This option, when enabled via \fIy\fP, shows \fnan\fP values for missing data instead of \f0\fP. This is useful when \f0\fP could be mistaken for valid data.
+This option, when enabled via \fIy\fP, shows \fInan\fP values for missing data instead of \fI0\fP. This is useful when \fI0\fP could be mistaken for valid data.
 .P
 Default value: \fIn\fP
 .RE
@@ -1077,7 +1077,7 @@ Default value: \fI/path/to/script.sh\fP
 .P
 .BI use_nan_for_missing_data
 .RS
-This option, when enabled via \fIy\fP, shows \fnan\fP values for missing data instead of \f0\fP. This is useful when \f0\fP could be mistaken for valid data.
+This option, when enabled via \fIy\fP, shows \fInan\fP values for missing data instead of \fI0\fP. This is useful when \fI0\fP could be mistaken for valid data.
 .P
 Default value: \fIn\fP
 .RE
@@ -1667,7 +1667,7 @@ Default value: \fI2\fP
 .RE
 .BI use_nan_for_missing_data
 .RS
-This option, when enabled via \fIy\fP, shows \fnan\fP values for missing data instead of \f0\fP. This is useful when \f0\fP could be mistaken for valid data.
+This option, when enabled via \fIy\fP, shows \fInan\fP values for missing data instead of \fI0\fP. This is useful when \fI0\fP could be mistaken for valid data.
 .P
 Default value: \fIn\fP
 .RE
@@ -1973,7 +1973,7 @@ Default value: \fIn\fP
 .P
 .BI use_nan_for_missing_data
 .RS
-This option, when enabled via \fIy\fP, shows \fnan\fP values for missing data instead of \f0\fP. This is useful when \f0\fP could be mistaken for valid data.
+This option, when enabled via \fIy\fP, shows \fInan\fP values for missing data instead of \fI0\fP. This is useful when \fI0\fP could be mistaken for valid data.
 .P
 Default value: \fIn\fP
 .RE
@@ -2130,7 +2130,7 @@ Default value: \fIn\fP
 .P
 .BI use_nan_for_missing_data
 .RS
-This option, when enabled via \fIy\fP, shows \fnan\fP values for missing data instead of \f0\fP. This is useful when \f0\fP could be mistaken for valid data.
+This option, when enabled via \fIy\fP, shows \fInan\fP values for missing data instead of \fI0\fP. This is useful when \fI0\fP could be mistaken for valid data.
 .P
 Default value: \fIn\fP
 .RE
@@ -2314,7 +2314,7 @@ Default value: \fIn\fP
 .P
 .BI use_nan_for_missing_data
 .RS
-This option, when enabled via \fIy\fP, shows \fnan\fP values for missing data instead of \f0\fP. This is useful when \f0\fP could be mistaken for valid data.
+This option, when enabled via \fIy\fP, shows \fInan\fP values for missing data instead of \fI0\fP. This is useful when \fI0\fP could be mistaken for valid data.
 .P
 Default value: \fIn\fP
 .RE
@@ -2537,7 +2537,7 @@ Default value: \fIn\fP
 .P
 .BI use_nan_for_missing_data
 .RS
-This option, when enabled via \fIy\fP, shows \fnan\fP values for missing data instead of \f0\fP. This is useful when \f0\fP could be mistaken for valid data.
+This option, when enabled via \fIy\fP, shows \fInan\fP values for missing data instead of \fI0\fP. This is useful when \fI0\fP could be mistaken for valid data.
 .P
 Default value: \fIn\fP
 .RE