diff --git a/otk/display.cc b/otk/display.cc
index b6fcab07..37203643 100644
--- a/otk/display.cc
+++ b/otk/display.cc
@@ -54,8 +54,10 @@ int OBDisplay::xerrorHandler(Display *d, XErrorEvent *e)
 #ifdef DEBUG
   char errtxt[128];
 
-  XGetErrorText(d, e->error_code, errtxt, 128);
-  printf("X Error: %s\n", errtxt);
+  if (e->error_code != BadWindow) {
+    XGetErrorText(d, e->error_code, errtxt, 128);
+    printf("X Error: %s\n", errtxt);
+  }
 #else
   (void)d;
   (void)e;