diff --git a/configs/sim/README.txt b/configs/sim/README.txt
index 20f76fbf29..be8d47456c 100644
--- a/configs/sim/README.txt
+++ b/configs/sim/README.txt
@@ -909,6 +909,9 @@ udgram
     nsh> server &
     nsh> client
 
+  For the sake of sanity, binfs and logins are disabled in this
+  configuration.
+
 unionfs
 
   This is a version of NSH dedicated to performing the simple test
diff --git a/configs/sim/udgram/defconfig b/configs/sim/udgram/defconfig
index 913e36117e..64f8e6f20a 100644
--- a/configs/sim/udgram/defconfig
+++ b/configs/sim/udgram/defconfig
@@ -15,14 +15,15 @@ CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DISABLE_POLL=y
 CONFIG_EXAMPLES_HELLO=y
 CONFIG_EXAMPLES_NSH=y
+CONFIG_EXAMPLES_UDGRAM_CLIENT_STACKSIZE=8192
+CONFIG_EXAMPLES_UDGRAM_SERVER_STACKSIZE=8192
 CONFIG_EXAMPLES_UDGRAM=y
 CONFIG_FAT_LCNAMES=y
 CONFIG_FAT_LFN=y
-CONFIG_FS_BINFS=y
 CONFIG_FS_FAT=y
 CONFIG_FS_PROCFS=y
 CONFIG_FS_ROMFS=y
-CONFIG_IDLETHREAD_STACKSIZE=4096
+CONFIG_IDLETHREAD_STACKSIZE=8192
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_MAX_TASKS=64
 CONFIG_NET_LOCAL=y
@@ -45,4 +46,4 @@ CONFIG_SIM_WALLTIME=y
 CONFIG_START_MONTH=6
 CONFIG_START_YEAR=2008
 CONFIG_USER_ENTRYPOINT="nsh_main"
-CONFIG_USERMAIN_STACKSIZE=4096
+CONFIG_USERMAIN_STACKSIZE=8192
diff --git a/net/socket/sendto.c b/net/socket/sendto.c
index 6ddf2a5958..acac383cd7 100644
--- a/net/socket/sendto.c
+++ b/net/socket/sendto.c
@@ -150,17 +150,17 @@ ssize_t psock_sendto(FAR struct socket *psock, FAR const void *buf,
 
   /* Verify that the psock corresponds to valid, allocated socket */
 
-  if (!psock || psock->s_crefs <= 0)
+  if (psock == NULL || psock->s_crefs <= 0)
     {
       nerr("ERROR: Invalid socket\n");
       errcode = EBADF;
       goto errout;
     }
 
-  /* Let the address family's send() method handle the operation */
+  /* Let the address family's sendto() method handle the operation */
 
-  DEBUGASSERT(psock->s_sockif != NULL && psock->s_sockif->si_send != NULL);
-  nsent = psock->s_sockif->si_send(psock, buf, len, flags);
+  DEBUGASSERT(psock->s_sockif != NULL && psock->s_sockif->si_sendto != NULL);
+  nsent = psock->s_sockif->si_sendto(psock, buf, len, flags, to, tolen);
 
   /* Check if the domain-specific sendto() logic failed */