diff --git a/lib/libc/stdlib/strtoul.3 b/lib/libc/stdlib/strtoul.3
index 9fa9539f9440..3eb602e08fa1 100644
--- a/lib/libc/stdlib/strtoul.3
+++ b/lib/libc/stdlib/strtoul.3
@@ -44,7 +44,7 @@
 .Nd "convert a string to an"
 .Vt "unsigned long" , "unsigned long long" , uintmax_t ,
 or
-.Vt uquad_t
+.Vt u_quad_t
 integer
 .Sh LIBRARY
 .Lb libc