diff --git a/acountry.c b/acountry.c
index 2f20ff48..7a10d64d 100644
--- a/acountry.c
+++ b/acountry.c
@@ -69,7 +69,7 @@
 #define INADDR_NONE 0xffffffff
 #endif
 
-static const char *usage      = "acountry [-vh?] {host|addr} ...\n";
+static const char *usage      = "acountry [-?hdv] {host|addr} ...\n";
 static const char  nerd_fmt[] = "%u.%u.%u.%u.zz.countries.nerd.dk";
 static const char *nerd_ver1  = nerd_fmt + 14;  /* .countries.nerd.dk */
 static const char *nerd_ver2  = nerd_fmt + 11;  /* .zz.countries.nerd.dk */
diff --git a/adig.c b/adig.c
index e112dc04..2d5cb8c8 100644
--- a/adig.c
+++ b/adig.c
@@ -795,8 +795,8 @@ static const char *class_name(int dnsclass)
 
 static void usage(void)
 {
-  fprintf(stderr, "usage: adig [-f flag] [-s server] [-c class] "
-          "[-t type] [-p port] name ...\n");
+  fprintf(stderr, "usage: adig [-h] [-d] [-f flag] [-s server] [-c class] "
+          "[-t type] [-T|U port] name ...\n");
   exit(1);
 }
 
diff --git a/ahost.c b/ahost.c
index 7fbfd641..89a7c14f 100644
--- a/ahost.c
+++ b/ahost.c
@@ -201,6 +201,6 @@ static void callback(void *arg, int status, int timeouts, struct hostent *host)
 
 static void usage(void)
 {
-  fprintf(stderr, "usage: ahost [-t {a|aaaa|u}] {host|addr} ...\n");
+  fprintf(stderr, "usage: ahost [-h] [-d] [-s {domain}] [-t {a|aaaa|u}] {host|addr} ...\n");
   exit(1);
 }