diff --git a/vncviewer/vncviewer.cxx b/vncviewer/vncviewer.cxx
index e305d79..6c0c738 100644
--- a/vncviewer/vncviewer.cxx
+++ b/vncviewer/vncviewer.cxx
@@ -376,6 +376,18 @@
                                  (strchr(vncServerName, '\\')) != NULL);
 
   if (hasPathSeparator) {
+#ifndef WIN32
+    struct stat sb;
+
+    // This might be a UNIX socket, we need to check
+    if (stat(vncServerName, &sb) == -1) {
+      // Some access problem; let loadViewerParameters() deal with it...
+    } else {
+      if ((sb.st_mode & S_IFMT) == S_IFSOCK)
+        return;
+    }
+#endif
+
     try {
       const char* newServerName;
       newServerName = loadViewerParameters(vncServerName);
@@ -573,7 +585,7 @@
 #endif
 
   if (listenMode) {
-    std::list<TcpListener*> listeners;
+    std::list<SocketListener*> listeners;
     try {
       int port = 5500;
       if (isdigit(vncServerName[0]))
@@ -587,7 +599,7 @@
       while (sock == NULL) {
         fd_set rfds;
         FD_ZERO(&rfds);
-        for (std::list<TcpListener*>::iterator i = listeners.begin();
+        for (std::list<SocketListener*>::iterator i = listeners.begin();
              i != listeners.end();
              i++)
           FD_SET((*i)->getFd(), &rfds);
@@ -602,7 +614,7 @@
           }
         }
 
-        for (std::list<TcpListener*>::iterator i = listeners.begin ();
+        for (std::list<SocketListener*>::iterator i = listeners.begin ();
              i != listeners.end();
              i++)
           if (FD_ISSET((*i)->getFd(), &rfds)) {