diff --git a/src/client.c b/src/client.c
index 30bf029..f1c69e5 100644
--- a/src/client.c
+++ b/src/client.c
@@ -27,7 +27,7 @@ patty_client *patty_client_new(const char *path) {
 
     memset(&addr, '\0', sizeof(addr));
     addr.sun_family = AF_UNIX;
-    strncpy(addr.sun_path, path, sizeof(addr.sun_path));
+    strncpy(addr.sun_path, path, sizeof(addr.sun_path)-1);
 
     if (connect(client->fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
         goto error_connect;
diff --git a/src/kiss.c b/src/kiss.c
index fb6502b..eed2c46 100644
--- a/src/kiss.c
+++ b/src/kiss.c
@@ -191,7 +191,7 @@ patty_kiss_tnc *patty_kiss_tnc_new(const char *device) {
 
         memset(&addr, '\0', sizeof(addr));
         addr.sun_family = AF_UNIX;
-        strncpy(addr.sun_path, device, sizeof(addr.sun_path));
+        strncpy(addr.sun_path, device, sizeof(addr.sun_path)-1);
 
         if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
             goto error_connect;
diff --git a/src/server.c b/src/server.c
index cc9102d..9de378b 100644
--- a/src/server.c
+++ b/src/server.c
@@ -46,7 +46,7 @@ patty_ax25_server *patty_ax25_server_new(const char *path) {
 
     memset(server, '\0', sizeof(*server));
 
-    strncpy(server->path, path, PATTY_AX25_SOCK_PATH_SIZE);
+    strncpy(server->path, path, sizeof(server->path)-1);
 
     if ((server->ifaces = patty_list_new()) == NULL) {
         goto error_list_new_ifaces;
@@ -523,7 +523,7 @@ static int respond_accept(int client,
     }
 
     if (path) {
-        strncpy(response.path, path, sizeof(response.path));
+        strncpy(response.path, path, sizeof(response.path)-1);
     }
 
     return write(client, &response, sizeof(response));
@@ -957,7 +957,7 @@ static int listen_unix(patty_ax25_server *server, const char *path) {
 
     memset(&addr, '\0', sizeof(addr));
     addr.sun_family = AF_UNIX;
-    strncpy(addr.sun_path, path, sizeof(addr.sun_path));
+    strncpy(addr.sun_path, path, sizeof(addr.sun_path)-1);
 
     if (bind(server->fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
         goto error_bind;
diff --git a/src/sock.c b/src/sock.c
index da67edf..ea26f63 100644
--- a/src/sock.c
+++ b/src/sock.c
@@ -30,7 +30,7 @@ static int bind_pty(patty_ax25_sock *sock) {
         goto error_ptsname;
     }
 
-    (void)strncpy(sock->pty, pty, sizeof(sock->pty));
+    (void)strncpy(sock->pty, pty, sizeof(sock->pty)-1);
 
     return 0;