diff --git a/lib/msun/man/ieee.3 b/lib/msun/man/ieee.3
index 7f9c1e5ed9d..adb55e89623 100644
--- a/lib/msun/man/ieee.3
+++ b/lib/msun/man/ieee.3
@@ -102,14 +102,13 @@ zero is returned
 .Pf \\*(Ba Ns Fa x Ns \\*(Ba
 = \*(If or
 .Fa x
-is \*(Na
+is \*(Na).
 .Pp
 .Fn ilogb
 and
 .Fn ilogbf
 return
-.Fa x Ns 's exponent
-.Fa n ,
+.Fa x Ns 's exponent,
 in integer format.
 .Fn ilogb \*(Pm\*(If
 returns