diff --git a/lib/libc/string/memccpy.3 b/lib/libc/string/memccpy.3
index 350f0007c85..40a25be4361 100644
--- a/lib/libc/string/memccpy.3
+++ b/lib/libc/string/memccpy.3
@@ -50,7 +50,9 @@ to string
 .Fa dst .
 If the character
 .Fa c
-(as converted to an unsigned char) occurs in the string
+(as converted to an
+.Vt "unsigned char" )
+occurs in the string
 .Fa src ,
 the copy stops and a pointer to the byte after the copy of
 .Fa c
diff --git a/lib/libc/string/memchr.3 b/lib/libc/string/memchr.3
index ae883bf0a26..6e33aef9838 100644
--- a/lib/libc/string/memchr.3
+++ b/lib/libc/string/memchr.3
@@ -52,7 +52,8 @@ The
 function
 locates the first occurrence of
 .Fa c
-(converted to an unsigned char)
+(converted to an
+.Vt "unsigned char" )
 in string
 .Fa b .
 .Pp
diff --git a/lib/libc/string/memcmp.3 b/lib/libc/string/memcmp.3
index 507b930cbc6..88ed9a25934 100644
--- a/lib/libc/string/memcmp.3
+++ b/lib/libc/string/memcmp.3
@@ -61,7 +61,9 @@ The
 function
 returns zero if the two strings are identical,
 otherwise returns the difference between the first two differing bytes
-(treated as unsigned char values, so that
+(treated as
+.Vt "unsigned char"
+values, so that
 .Sq Li \e200
 is greater than
 .Sq Li \&\e0 ,
diff --git a/lib/libc/string/memset.3 b/lib/libc/string/memset.3
index 1dc287df298..07bd7aa7d62 100644
--- a/lib/libc/string/memset.3
+++ b/lib/libc/string/memset.3
@@ -52,7 +52,9 @@ writes
 .Fa len
 bytes of value
 .Fa c
-(converted to an unsigned char) to the string
+(converted to an
+.Vt "unsigned char" )
+to the string
 .Fa b .
 .Sh RETURN VALUES
 The