diff --git a/include/resolv.h b/include/resolv.h
index 40ca2e8a467f..f32f52bab431 100644
--- a/include/resolv.h
+++ b/include/resolv.h
@@ -58,6 +58,7 @@
 #include <sys/cdefs.h>
 #include <sys/socket.h>
 #include <stdio.h>
+#include <netinet/in.h>
 #include <arpa/nameser.h>
 
 /*%
diff --git a/lib/libc/net/resolver.3 b/lib/libc/net/resolver.3
index 832fa05e994b..f1220dcf9b7f 100644
--- a/lib/libc/net/resolver.3
+++ b/lib/libc/net/resolver.3
@@ -25,7 +25,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd September 15, 2022
+.Dd January 8, 2024
 .Dt RESOLVER 3
 .Os
 .Sh NAME
@@ -45,9 +45,6 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In sys/types.h
-.In netinet/in.h
-.In arpa/nameser.h
 .In resolv.h
 .Ft int
 .Fo res_query