Fix Dt.
diff --git a/man/zip_libzip_version.mdoc b/man/zip_libzip_version.mdoc
index 511b9a1..77dcb56 100644
--- a/man/zip_libzip_version.mdoc
+++ b/man/zip_libzip_version.mdoc
@@ -30,7 +30,7 @@
 .\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
 .Dd October 6, 2017
-.Dt ZIP_LIBZIP_VERSION
+.Dt ZIP_LIBZIP_VERSION 3
 .Os
 .Sh NAME
 .Nm zip_libzip_version