diff --git a/lib/msun/man/cos.3 b/lib/msun/man/cos.3
index 9deed6173f1c..d0cdf68bf4b4 100644
--- a/lib/msun/man/cos.3
+++ b/lib/msun/man/cos.3
@@ -44,8 +44,8 @@
 .Fn cos "double x"
 .Ft float
 .Fn cosf "float x"
-.Fn long double
-.Ft cosl "long double x"
+.Ft long double
+.Fn cosl "long double x"
 .Sh DESCRIPTION
 The
 .Fn cos ,