1 files changed, 1 insertions, 0 deletions

diff --git a/src/usocket.c b/src/usocket.c
index 3e151bf..dcb40e6 100644
--- a/src/usocket.c
+++ b/src/usocket.c
@@ -358,6 +358,7 @@ const char *sock_strerror(int err) {
     if (err <= 0) return io_strerror(err);
     switch (err) {
         case EADDRINUSE: return "address already in use";
+        case EISCONN: return "already connected";
         case EACCES: return "permission denied";
         case ECONNREFUSED: return "connection refused";
         case ECONNABORTED: return "closed";