diff --git a/man5/tzfile.5 b/man5/tzfile.5
index be09f303f..d494aee1e 100644
--- a/man5/tzfile.5
+++ b/man5/tzfile.5
@@ -16,18 +16,24 @@ These files are typically found under one of the directories
 or
 .IR /usr/share/zoneinfo .
 
-Timezone information files
-begin with the magic characters "TZif" to identify them as
-timezone information files,
-followed by a character identifying the version of the file's format
-(as of 2005, either an ASCII NUL (\(aq\\0\(aq) or a \(aq2\(aq (\fB0x32\fP))
-followed by fifteen bytes containing zeros reserved for future use,
-followed by six four-byte values of type
+Timezone information files begin with a 44-byte header structured as follows:
+.IP * 3
+The magic four-byte sequence
+"TZif" identifying this as a
+timezone information file.
+.IP *
+A single character identifying the version of the file's format:
+either an ASCII NUL (\(aq\\0\(aq) or a \(aq2\(aq (\fB0x32\fP).
+.IP *
+Fifteen bytes containing zeros reserved for future use.
+.IP *
+Six four-byte values of type
 .IR long ,
 written in a "standard" byte order
 (the high-order byte of the value is written first).
 These values are,
 in order:
+.RS
 .TP
 .I tzh_ttisgmtcnt
 The number of UTC/local indicators stored in the file.
@@ -49,6 +55,7 @@ in the file (must not be zero).
 .I tzh_charcnt
 The number of characters of "timezone abbreviation strings"
 stored in the file.
+.RE
 .PP
 The above header is followed by
 .I tzh_timecnt