diff --git a/arch/sim/src/sim/up_usrsock_host.c b/arch/sim/src/sim/up_usrsock_host.c
index 7024997aef4..d6428fc3998 100644
--- a/arch/sim/src/sim/up_usrsock_host.c
+++ b/arch/sim/src/sim/up_usrsock_host.c
@@ -365,8 +365,8 @@ int usrsock_host_getsockname(int sockfd,
                              struct nuttx_sockaddr *addr,
                              nuttx_socklen_t *addrlen)
 {
+  socklen_t naddrlen = sizeof(struct sockaddr);
   struct sockaddr naddr;
-  socklen_t naddrlen;
   int ret;
 
   ret = getsockname(sockfd, &naddr, &naddrlen);
@@ -387,8 +387,8 @@ int usrsock_host_getpeername(int sockfd,
                              struct nuttx_sockaddr *addr,
                              nuttx_socklen_t *addrlen)
 {
+  socklen_t naddrlen = sizeof(struct sockaddr);
   struct sockaddr naddr;
-  socklen_t naddrlen;
   int ret;
 
   ret = getpeername(sockfd, &naddr, &naddrlen);