1 files changed, 2 insertions, 0 deletions

diff --git a/src/FbTk/App.cc b/src/FbTk/App.cc
index 8ced4a1..084b801 100644
--- a/src/FbTk/App.cc
+++ b/src/FbTk/App.cc
@@ -51,6 +51,8 @@ App::App(const char *displayname):m_done(false), m_display(0) {
     if (displayname != 0 && displayname[0] == '\0')
         displayname = 0;
     m_display = XOpenDisplay(displayname);
+    if (!m_display)
+        throw std::string("Couldn't connect to XServer");
 
     Font::init();
     Image::init();